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Restoring based on this ATT thread and changing to localized names as per policy.



* ''Anime/YuGiOhArcV'': Shun Kurosaki towards his sister. When she gets kidnapped, he does a lot of dark things to try and get her back, despite evidence that he's attacking the wrong people. Fortunately, he figures this out and turns his attention to the right people.

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\n* ''Anime/YuGiOhGX'': [[{{Yandere}} Yubel]], [[StalkerWithACrush Yubel]], [[LoveMakesYouEvil Yubel]]. Boy has an overprotective guardian spirit. Boy sends the spirit away hoping to pacify them. Spirit instead runs afoul of the very force they were supposed to protect the boy from and suffers 10 years of torture. Spirit can't understand why the boy they love ''so much'' would let them suffer like this. Driven mad by the pain, spirit can only conclude that love and suffering must actually be the same thing, that way they can dismiss they're torment as just the boy's way of showing them love. Now the spirit is back and wants to [[TheMasochismTango return the favour]], which they do with all the dedication of someone genuinely in love.
* ''Anime/YuGiOhArcV'': Shun Kurosaki Shay Obsidian towards his sister. When she gets kidnapped, he does a lot of dark things to try and get her back, despite evidence that he's attacking the wrong people. Fortunately, he figures this out and turns his attention to the right people.
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* ''Anime/YuGiOhGX'': [[{{Yandere}} Yubel]], [[StalkerWithACrush Yubel]], [[LoveMakesYouEvil Yubel]]. Boy has an overprotective guardian spirit. Boy sends the spirit away hoping to pacify it. Spirit instead runs afoul of the very force it was supposed to protect the boy from and suffers 10 years of torture. Spirit can't understand why the boy they love ''so much'' would let them suffer like this. Driven mad by the pain, spirit can only conclude that love and suffering must actually the same thing, that way it can dismiss its torment as just the boy's way of showing it love. Now spirit is back and wants to [[TheMasochismTango return the favour]], which it does with all the dedication of someone genuinely in love.

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* ''Anime/YuGiOhGX'': [[{{Yandere}} Yubel]], [[StalkerWithACrush Yubel]], [[LoveMakesYouEvil Yubel]]. Boy has an overprotective guardian spirit. Boy sends the spirit away hoping to pacify it. Spirit instead runs afoul of the very force it was supposed to protect the boy from and suffers 10 years of torture. Spirit can't understand why the boy they love ''so much'' would let them suffer like this. Driven mad by the pain, spirit can only conclude that love and suffering must actually the same thing, that way it can dismiss its torment as just the boy's way of showing it love. Now spirit is back and wants to [[TheMasochismTango return the favour]], which it does with all the dedication of someone genuinely in love.
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* ''VideoGame/ShadowOfTheColossus'': Wander is so devoted to Mono that he makes a DealWithTheDevil that must be fulfilled via him killing sixteen towering monsters even after being warned of the consequences.
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* ''LightNovel/{{Durarara}}'': The entire series is all about love making everyone crazy. It's also generally not portrayed as a ''bad'' thing, at least not directly.

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* ''LightNovel/{{Durarara}}'': ''Literature/{{Durarara}}'': The entire series is all about love making everyone crazy. It's also generally not portrayed as a ''bad'' thing, at least not directly.



* Gunter from ''LightNovel/KyoKaraMaoh''. At first, Gunter seems a little like an idiot, or perhaps more like a teenage girl in love. He tends to be rather overprotective of Yuuri, fussing over every little thing and freaking out whenever he goes missing. Supposedly (at least in the manga), Gunter was actually quite an organized and professional man before he met Yuuri.

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* Gunter from ''LightNovel/KyoKaraMaoh''.''Literature/KyoKaraMaoh''. At first, Gunter seems a little like an idiot, or perhaps more like a teenage girl in love. He tends to be rather overprotective of Yuuri, fussing over every little thing and freaking out whenever he goes missing. Supposedly (at least in the manga), Gunter was actually quite an organized and professional man before he met Yuuri.
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* Godot from ''VisualNovel/PhoenixWright'' was rational and was passionate about justice before he [[spoiler:woke up from a poisoning-induced coma to find that Mia Fey, his apprentice who he was in love with, had been murdered. After that, his psyche became a messy ball of anger, self-loathing, and obsession, reshaped for the sole purpose of getting revenge against Phoenix Wright, who he blamed for her death but actually had nothing to do with it; in fact, he's the one who put away the guy who actually ''did'' kill her. Even Mia's directly telling him that he's being ridiculous does nothing to halt his crusade.]]

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* Godot from ''VisualNovel/PhoenixWright'' was rational and was passionate about justice before he [[spoiler:woke up from a poisoning-induced coma to find that Mia Fey, his apprentice who he was in love with, had been murdered. After that, his psyche became a messy ball of anger, self-loathing, and obsession, reshaped for the sole purpose of getting revenge against Phoenix Wright, who he blamed for her death but actually had nothing to do with it; in fact, he's the one who put away the guy who actually ''did'' kill her. Even Mia's Mia (as a ghost) directly telling him that he's being ridiculous does nothing to halt his crusade.]]
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* ''LightNovel/AiNoKusabi'' has Guy, who is so in love with Riki, not only does he [[spoiler:give Riki a penectomy to remove the pet ring that was on his penis upon being told that as long as Riki wears Iason's pet ring he'll never be free of him, but he also blows up an entire fortress in an attempt to kill Iason]]. Second example is Iason, who, like Guy, becomes extremely obsessed with Riki. It's not touched upon in the old OVA, but the novel and audio drama have scenes where Riki slept with a female pet, and he was subsequently brutally tortured by Iason. Not to mention the number of times Iason forces Riki into having sex with him.

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* ''LightNovel/AiNoKusabi'' ''Literature/AiNoKusabi'' has Guy, who is so in love with Riki, not only does he [[spoiler:give Riki a penectomy to remove the pet ring that was on his penis upon being told that as long as Riki wears Iason's pet ring he'll never be free of him, but he also blows up an entire fortress in an attempt to kill Iason]]. Second example is Iason, who, like Guy, becomes extremely obsessed with Riki. It's not touched upon in the old OVA, but the novel and audio drama have scenes where Riki slept with a female pet, and he was subsequently brutally tortured by Iason. Not to mention the number of times Iason forces Riki into having sex with him.



* ''LightNovel/{{Shimoneta}}'': PlayedForLaughs with Anna, who becomes obsessed with Tanukichi after he accidentally kisses her, which sets off her pent-up hormones. From then on, she relentlessly pursues him around school and [[StalkerWithACrush will even show up at his apartment]], in an attempt to get his "love nectar".
* ''LightNovel/StrawberryPanic'': Shizuma (aka Etoile-sama) can make Nagisa freeze or even faint just by looking at her a certain way. Typically the character who has this effect on a person is unaware, but Shizuma knows and [[HandsomeLech seems to like doing this]].

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* ''LightNovel/{{Shimoneta}}'': ''Literature/{{Shimoneta}}'': PlayedForLaughs with Anna, who becomes obsessed with Tanukichi after he accidentally kisses her, which sets off her pent-up hormones. From then on, she relentlessly pursues him around school and [[StalkerWithACrush will even show up at his apartment]], in an attempt to get his "love nectar".
* ''LightNovel/StrawberryPanic'': ''Literature/StrawberryPanic'': Shizuma (aka Etoile-sama) can make Nagisa freeze or even faint just by looking at her a certain way. Typically the character who has this effect on a person is unaware, but Shizuma knows and [[HandsomeLech seems to like doing this]].



* In an issue of ''ComicBook/SwampThing'', "My Blue Heaven" (written by Creator/AlanMoore) has Alec trapped on an alien world all alone. He uses his plant-controlling powers to create clones of himself... and then, in a moment of temptation, creates his love Abby. After spending another day creating an entire populated world, he accidentally creates a [[Comicbook/{{Hellblazer}} John Constantine]] who warns him how crazy he's become. It doesn't help that Alec can't ignore the fact he can't get Abby's smile just right, and he goes mad when his Abby-self responds "All love... is madness."

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* In an issue of ''ComicBook/SwampThing'', "My Blue Heaven" (written by Creator/AlanMoore) has Alec trapped on an alien world all alone. He uses his plant-controlling powers to create clones of himself... and then, in a moment of temptation, creates his love Abby. After spending another day creating an entire populated world, he accidentally creates a [[Comicbook/{{Hellblazer}} [[ComicBook/{{Hellblazer}} John Constantine]] who warns him how crazy he's become. It doesn't help that Alec can't ignore the fact he can't get Abby's smile just right, and he goes mad when his Abby-self responds "All love... is madness."



* ''FanFic/{{Rules}}'': [[spoiler:Even after losing her memories of the Death Note]], Misa is ''still'' obsessed with Light, to the point of delusion. Once Light breaks up with her, she goes into [[CrazyJealousGuy Crazy Jealous]] StalkerWithACrush mode and harasses him to take her back. Even after it's made clear that Light is ''not'' getting back together with her, she remains convinced that he will return to her after the "American whore" (Charlie) breaks his heart.

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* ''FanFic/{{Rules}}'': ''Fanfic/{{Rules}}'': [[spoiler:Even after losing her memories of the Death Note]], Misa is ''still'' obsessed with Light, to the point of delusion. Once Light breaks up with her, she goes into [[CrazyJealousGuy Crazy Jealous]] StalkerWithACrush mode and harasses him to take her back. Even after it's made clear that Light is ''not'' getting back together with her, she remains convinced that he will return to her after the "American whore" (Charlie) breaks his heart.



* In ''LightNovel/OnlyTheRingFingerKnows'', Yuichi Kazuki is known at Wataru Fujii's school for being kind and polite to everyone he meets, despite possessing ridiculous amounts of [[{{Bishonen}} beauty]], wealth, and talent. Yet whenever Wataru crosses paths with him, Yuichi never fails to be [[{{Jerkass}} snarky and insulting]] towards him. Karin, Wataru's sister, comments that this must mean that Yuichi either ''really'' hates him... or ''really'' likes him. Guess which one it turns out to be.

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* In ''LightNovel/OnlyTheRingFingerKnows'', ''Literature/OnlyTheRingFingerKnows'', Yuichi Kazuki is known at Wataru Fujii's school for being kind and polite to everyone he meets, despite possessing ridiculous amounts of [[{{Bishonen}} beauty]], wealth, and talent. Yet whenever Wataru crosses paths with him, Yuichi never fails to be [[{{Jerkass}} snarky and insulting]] towards him. Karin, Wataru's sister, comments that this must mean that Yuichi either ''really'' hates him... or ''really'' likes him. Guess which one it turns out to be.



%%* Shane Walsh in ''Series/TheWalkingDead''.

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%%* Shane Walsh in ''Series/TheWalkingDead''.''Series/TheWalkingDead2010''.



* This is how the original ''Blood Omen: VideoGame/LegacyOfKain'' begins: When Nupraptor the Mentalist, guardian of the Pillar of the Mind, discovers that his lover Ariel, guardian of the Pillar of Balance, has been murdered in cold blood, he goes completely insane and secludes himself in his mountain retreat. Which wouldn't be so bad by itself, except he has a mental link with all the other Pillar guardians, who all become corrupted by his madness in turn. [[spoiler:Including Kain while he was still in the womb.]]

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* This is how the original ''Blood Omen: VideoGame/LegacyOfKain'' ''VideoGame/BloodOmenLegacyOfKain'' begins: When Nupraptor the Mentalist, guardian of the Pillar of the Mind, discovers that his lover Ariel, guardian of the Pillar of Balance, has been murdered in cold blood, he goes completely insane and secludes himself in his mountain retreat. Which wouldn't be so bad by itself, except he has a mental link with all the other Pillar guardians, who all become corrupted by his madness in turn. [[spoiler:Including Kain while he was still in the womb.]]



* In ''VideoGame/{{Persona 3}}'', after "The Journey" ends with the heroes defeating Nyx at the cost of [[spoiler:the player character]]'s [[HeroicSacrifice life]], [[spoiler:Yukari]], who was in love with him, is stricken with grief. In "The Answer," when the group gets trapped in the Abyss of Time, and learns that the eight Keys of Time can not only take them back to the present but also give them a one-way trip to anywhere in the past, [[spoiler:Yukari]] elects to return to when before Nyx was defeated and try to find another way that doesn't require the one she loved to die, even if she risks TheEndOfTheWorldAsWeKnowIt. This results in the group fighting each other over what to do with the keys, and when [[spoiler:Yukari]] is defeated, she gives up on her plan.

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* In ''VideoGame/{{Persona 3}}'', ''VideoGame/Persona3'', after "The Journey" ends with the heroes defeating Nyx at the cost of [[spoiler:the player character]]'s [[HeroicSacrifice life]], [[spoiler:Yukari]], who was in love with him, is stricken with grief. In "The Answer," when the group gets trapped in the Abyss of Time, and learns that the eight Keys of Time can not only take them back to the present but also give them a one-way trip to anywhere in the past, [[spoiler:Yukari]] elects to return to when before Nyx was defeated and try to find another way that doesn't require the one she loved to die, even if she risks TheEndOfTheWorldAsWeKnowIt. This results in the group fighting each other over what to do with the keys, and when [[spoiler:Yukari]] is defeated, she gives up on her plan.
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* This trope is the whole shebang of ''VideoGame/SilentHill2'', where the protagonist [[CrusadingWidower James Sunderland]] is absolutely nuts following the death of his wife Mary... to the point where he's desperate enough to believe that [[HesJustHiding she is actually alive and waiting in Silent Hill]]. Of course, his feelings toward Mary, inability to see her suffer, and all-consuming fears of abandonment are so exaggerated that he [[spoiler: kills her instead of letting her die]] and is eventually [[spoiler: DrivenToSuicide]], at least in one ending.

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* This trope is the whole shebang of ''VideoGame/SilentHill2'', where the protagonist [[CrusadingWidower [[CrusadingWidow James Sunderland]] is absolutely nuts following the death of his wife Mary... to the point where he's desperate enough to believe that [[HesJustHiding she is actually alive and waiting in Silent Hill]]. Of course, his feelings toward Mary, inability to see her suffer, and all-consuming fears of abandonment are so exaggerated that he [[spoiler: kills her instead of letting her die]] and is eventually [[spoiler: DrivenToSuicide]], at least in one ending.
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Kill Em All was renamed Everybody Dies Ending due to misuse. Dewicking


* OlderThanDirt: ''Literature/TheIliad'' is about the Trojan War, which was started because Paris saw Helen of Troy, the WorldsMostBeautifulWoman, and had to have her. Unfortunately for him, she already had a husband, Menelaus of Sparta, and when he found out what happened, he rallied the city-states of Greece to make war on Troy. Total survivors? [[KillEmAll a handful]]: Menelaus and Helen made it back with an unstated number of followers, as did Odysseus (after he had his own GaidenGame, ''Literature/TheOdyssey''), but ''literally everyone else died'': all the Achaeans on the thousand ships, and everyone in Troy as well. (And, keep in mind, "LoveMakesYouCrazy" is the ''flattering'' interpretation of Paris's actions; "LoveMakesYouEvil" is just as applicable, as is "DownfallBySex.")

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* OlderThanDirt: ''Literature/TheIliad'' is about the Trojan War, which was started because Paris saw Helen of Troy, the WorldsMostBeautifulWoman, and had to have her. Unfortunately for him, she already had a husband, Menelaus of Sparta, and when he found out what happened, he rallied the city-states of Greece to make war on Troy. Total survivors? [[KillEmAll a handful]]: A handful: Menelaus and Helen made it back with an unstated number of followers, as did Odysseus (after he had his own GaidenGame, ''Literature/TheOdyssey''), but ''literally everyone else died'': all the Achaeans on the thousand ships, and everyone in Troy as well. (And, keep in mind, "LoveMakesYouCrazy" is the ''flattering'' interpretation of Paris's actions; "LoveMakesYouEvil" is just as applicable, as is "DownfallBySex.")
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** Another contender for the craziest is the Ushiromiya patriarch Kinzo, whose hysterical obsession over [[spoiler:his late mistress]] Beatrice drove him to [[spoiler:''[[ParentalIncest rape their illegitimate daughter]]'' because he'd convinced himself that she was her mother's reincarnation.]]
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** Gil [[http://www.girlgeniusonline.com/comic.php?date=20060301 intentionally]] gives Wooster a free excursion to TheMadnessPlace: "...and there is ''nothing'' I couldn't do, had I cause! And ''now''... ''Now I have one!''"
** When the castle "really flips out" and thus "her beaux" are in danger, Agatha "really flips out" too. Later she spouted a fairly crazy ([[TheExtremistWasRight though it works]]) HowDareYouDieOnMe speech.

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** Gil [[http://www.girlgeniusonline.com/comic.php?date=20060301 intentionally]] gives Wooster a free excursion to TheMadnessPlace: "...and there is ''nothing'' I couldn't do, had I cause! And ''now''... ''Now ''Now, I have one!''"
** When the castle "really flips out" and thus puts "her beaux" are in danger, Agatha "really flips out" too. Later she spouted a fairly crazy ([[TheExtremistWasRight though (though...it works]]) does work) HowDareYouDieOnMe speech.



** Gil has a tendancy towards this trope, especially if he believes someone he loves is dead or missing. When he first thought Agatha was dead, he spent most of his time in TheMadnessPlace. Losing [[spoiler: Mechanicsburg with everyone he cares about inside]] has apparently driven him [[SanitySlippage over the edge]]. He remains [[TheInsomniac awake for weeks]], once again constantly in TheMadnessPlace, resulting in [[CreepyShadowedUndereyes dark circles]] around his eyes, zombie-like look and irrational, violent behaviour.

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** Gil has a tendancy tendency towards this trope, especially if he believes someone he loves is dead or missing. When he first thought Agatha was dead, he spent most of his time in TheMadnessPlace. Losing [[spoiler: Mechanicsburg with everyone he cares about inside]] has apparently driven him [[SanitySlippage over the edge]]. He remains [[TheInsomniac awake for weeks]], once again constantly in TheMadnessPlace, resulting in [[CreepyShadowedUndereyes dark circles]] around his eyes, zombie-like look and irrational, violent behaviour.
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The Cheerleader is no longer a trope


* An excellent summary of Twist in ''ComicBook/{{Chassis}}''. She is [[TheCheerleader a cheerleader]] so obsessed with her favourite Aero-run driver that she is willing to do whatever it takes to ensure he wins: sabotaging, and even killing, his rival racers.

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* An excellent summary of Twist in ''ComicBook/{{Chassis}}''. She is [[TheCheerleader a cheerleader]] cheerleader so obsessed with her favourite Aero-run driver that she is willing to do whatever it takes to ensure he wins: sabotaging, and even killing, his rival racers.
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Removing flamebait.


* ''Series/TheHauntingHour'': The Valentine's Day episode "Terrible Love" had Brendon go insane when Maggie begs Cupid to shoot Brendon with another love arrow. Cupid initially objects as one love arrow is enough, and more than one causes jealousy, greed, and possessiveness (which Cupid has seen too much of in his time as the god of love). [[WhatAnIdiot Maggie doesn't care]], and ends up dealing with her crush who has turned clingy and deranged.

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* ''Series/TheHauntingHour'': The Valentine's Day episode "Terrible Love" had Brendon go insane when Maggie begs Cupid to shoot Brendon with another love arrow. Cupid initially objects as one love arrow is enough, and more than one causes jealousy, greed, and possessiveness (which Cupid has seen too much of in his time as the god of love). [[WhatAnIdiot Maggie doesn't care]], care, and ends up dealing with her crush who has turned clingy and deranged.
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* ''Literature/TheEmpiriumTrilogy'': Corien the Undying Emperor has spent a ''lot'' of time thinking about Rielle and his love for her. It gets to the point where he can't focus on much else. By the time he has [[spoiler:Eliana in his clutches]], the need to see his long lost love again trumps even his desire for resurrection.
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* The ''WesternAnimation/WhatIf'' episode [[Recap/WhatIfS1E4WhatIfDoctorStrangeLostHisHeartInsteadOfHisHands "What If Doctor Strange Lost His Heart Instead Of His Hands?"]] focuses on a desperate Doctor Strange trying to undo the death of his girlfriend Christine. His sheer obsessive drive to revive her turns him into a complete lunatic, a full-on EvilSorcerer convinced that he can undo what is a fixed point in time. [[spoiler:His obsession ultimately results in the destruction of the ''entire universe'']].
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examples are not general



[[folder:Real Life]]
* Romantic love is in fact linked to high levels of dopamine. High levels of dopamine are directly related to symptoms of psychosis, i.e. delusional thinking and hallucinations. Love ''actually'' makes you crazy.
** A study noted that the behaviour associated with the initial stages of romantic love is functionally indistinguishable with the behaviour associated with obsessive-compulsive disorder.
* "Folie à deux", or in more modern terms "shared psychosis", usually occurs between family members or couples with close relationships.
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TRS cleanup


* ''TabletopGame/NewVindicators'' features quite a few characters who go through this. Ryan Mueller develops a loving obsession with Katie Merrick, [[StuffedIntoTheFridge things don't go so well for her when she doesn't reciprocate his feelings]]. Also Rift develops into an AxCrazy {{Yandere}} after her feelings for Michuru Bradshaw reach critical mass.

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* ''TabletopGame/NewVindicators'' features quite a few characters who go through this. Ryan Mueller develops a loving obsession with Katie Merrick, [[StuffedIntoTheFridge things don't go so well for her when she doesn't reciprocate his feelings]].feelings. Also Rift develops into an AxCrazy {{Yandere}} after her feelings for Michuru Bradshaw reach critical mass.
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Pinball.WHO Dunnit has been moved to Pinball.Who Dunnit 1995 for disambiguation purposes. I also reworded the example to provide more context and not rely so much on the spoilered portion. Finally, I commented out the entire Pro Wrestling folder, since it only contains two ZCEs at the moment.


[[folder:Pinballs]]
* In ''Pinball/WHODunnit'', Butler has this for Victoria. Not only does he put up with her constant abuse, but [[spoiler:he also participates in her BlackWidow tendencies and attempts to murder Tex after he threatens her.]]

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[[folder:Pinballs]]
[[folder:Pinball]]
* In ''Pinball/WHODunnit'', Butler has this A platonic example: in ''Pinball/WhoDunnit1995'', Butler's loyalty for Victoria. Not Victoria is the only does reason he put puts up with her constant abuse, but [[spoiler:he also participates in abuse. What's more, he cares so much about her that he [[spoiler:enables her BlackWidow tendencies and attempts to murder Tex after he threatens her.]]



[[folder:Pro Wrestling]]
* Many of Wrestling/RandySavage's angles that involve Wrestling/MissElizabeth invoke this trope.
* And don't even get us ''started'' on [[Wrestling/AJLee AJ]].
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[[folder:Pro %%[[folder:Pro Wrestling]]
* %%* Many of Wrestling/RandySavage's angles that involve Wrestling/MissElizabeth invoke this trope.
* %%* And don't even get us ''started'' on [[Wrestling/AJLee AJ]].
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%%[[/folder]]
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* In ''WesternAnimation/BoJackHorseman'', this plays heavily into the backstory of [=BoJack=]'s mother, Beatrice. When Beatrice was a little girl growing up in the 40s, her older brother [=CrackerJack=] was tragically killed while fighting in World War II. Due to {{Deliberate Values Dissonance}}, Beatrice's mother, Honey, was unable to grieve for her son properly, which resulted in her causing a scene at a party and deliberately crashing her car, almost killing her and Beatrice. Though they both survived, Honey ended up begging her husband, Joseph (who was unwilling to deal with "womanly" emotions), to "fix" her. Joseph's solution? Have Honey ''lobotomized'', much to Beatrice's horror. One of the last lucid comments Honey said to her daughter was "Love does things to people. Horrible things. Beatrice, promise me you'll never love anyone as much as I loved [=CrackerJack=]." Unfortunately, Beatrice keeping this promise [[UnwittingInstigatorOfDoom ended up causing a lot of pain for a lot of people...]]
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* As revealed during the GrandFinale of ''WesternAnimation/{{Centaurworld}}'', this was ultimately what brought about and was the driving motivation behind [[spoiler:the [[BigBad Nowhere King.]]]] In several different ways.
** [[spoiler:The original form of the Nowhere King, an Elktaur, believed the human princess he loved could never love him as he was. So, in a fit of lovelorn foolishness, he used the Rift Portal to split himself into two halves. His Elk half and Human Half.]]
** [[spoiler:The Elk half was forced to watch jealously from afar while his human side, The General, got to be happy with the Princess. When he confronted The General over this, The General attempted to murder him. But being two halves of one whole, The General couldn't kill him without killing himself. So he instead locked the Elk away into a micro sized dungeon cell for ''10 years''.]]
** [[spoiler:Free of the dungeon, the Elk, crazed from a decade of being locked away and denied his love, used the portal to make his Minotaur army. Degrading into the beast known as The Nowhere King.]]
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* Creator/JeremyIrons in ''Film/{{Damage}}'' if you consider travelling from London to Paris just to spy on someone crazy (which most people presumably would).

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* Creator/JeremyIrons in ''Film/{{Damage}}'' ''Film/{{Damage|1992}}'' if you consider travelling from London to Paris just to spy on someone crazy (which most people presumably would).
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* Jeremy Irons in ''Damage'' if you consider travelling from London to Paris just to spy on someone crazy (which most people presumably would).

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* Jeremy Irons Creator/JeremyIrons in ''Damage'' ''Film/{{Damage}}'' if you consider travelling from London to Paris just to spy on someone crazy (which most people presumably would).
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Moving this example over to Love Makes You Evil, where it will fit better


* In the fourth episode of ''WesternAnimation/WhatIf2021'', Doctor Strange ends up this way since he loses his girlfriend Christine in a car crash, rather than simply losing control of his hands like in [[Film/DoctorStrange2016 the prime reality]]. Stephen becomes unable to accept her death and turns into a FallenHero, planning to perform a DangerousForbiddenTechnique to save her since [[YouCantFightFate her death is a fixed point in time]]. [[spoiler: Good news: [[BeCarefulWhatYouWishFor he does manage to save her]]! Bad news: the RealityBreakingParadox ends up creating a ''[[ApocalypseHow/ClassX4 Class X-4]]'' destruction of his universe! And it was AllForNothing anyway, as the reality erasure kills Christine ''again'', leaving Strange alone in a black void and [[MyGodWhatHaveIDone brought to tears over what he's done]].]]
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* In the fourth episode of ''WesternAnimation/WhatIf2021'', Doctor Strange ends up this way since he loses his girlfriend Christine in a car crash, rather than simply losing control of his hands like in [[Film/DoctorStrange2016 the prime reality]]. Stephen becomes unable to accept her death and turns into a FallenHero, planning to perform a DangerousForbiddenTechnique to save her since [[YouCantFightFate her death is a fixed point in time]]. [[spoiler: Good news: [[BeCarefulWhatYouWishFor he does manage to save her]]! Bad news: the RealityBreakingParadox ends up creating a ''[[ApocalypseHow/ClassX4 Class X-4]]'' destruction of his universe! And it was AllForNothing anyway, as the reality erasure kills Christine ''again'', leaving Strange alone in a black void and [[MyGodWhatHaveIDone brought to tears over what he's done]].]]
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Duplicate example


* In ''LightNovel/OnlyTheRingFingerKnows'', Yuichi falling for Wataru certainly does a number on his ability to behave rationally... which stands out since he's otherwise very socially adept.
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* In ''LightNovel/OnlyTheRingFingerKnows'', Yuichi falling for Wataru certainly does a number on his ability to behave rationally... which stands out since he's otherwise very socially adept.
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** Daenerys Targaryen's khalasar naturally think that she has gone off the rails after her husband's death and son's stillbirth, when she intends to walk into Drogo's funeral pyre. They aren't moved when she gives a RousingSpeech about leading them to triumph over their enemies, with some outright saying that they don't take orders from a crazy woman. Then she hatches three dragons, and everyone immediately bend the knee.
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Crazy Awesome is a disambig now.


* ''WesternAnimation/ThePenguinsOfMadagascar'''s Rico is already CrazyAwesome, but when love comes into the equation...

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* ''WesternAnimation/ThePenguinsOfMadagascar'''s Rico is already CrazyAwesome, crazy, but when love comes into the equation...
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* In ''WesternAnimation/TheSteamEnginesOfOz'', it was losing his love Nimmie Amee that caused the Tin Man to go crazy with grief and remove his heart, and gradually become a TinTyrant: seeking to destroy both magic and the munchikin race as the two factors he considered responsible for her death.

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* In ''WesternAnimation/TheSteamEnginesOfOz'', it was losing his love Nimmie Amee that caused the Tin Man to go crazy with grief and remove his heart, and gradually become a TinTyrant: seeking to destroy both magic and the munchikin munchkin race as the two factors he considered considers responsible for her death.
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* In ''WesternAnimation/TheSteamEnginesOfOz'', it was losing his love Nimmie Amee that caused the Tin Man to go crazy with grief and remove his heart, and gradually become a TinTyrant: seeking to destroy both magic and the munchikin race as the two factors he considered responsible for her death.

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%% Image removed from page per crowner results of Image Pickin' thread: https://tvtropes.org/pmwiki/posts.php?discussion=1294555386018037100
%% Please start a new IP thread if you'd like to suggest a pic.

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%% Image removed from page per crowner results of Image Pickin' thread: https://tvtropes.org/pmwiki/posts.php?discussion=1294555386018037100
%% Please start a new IP thread if you'd like to suggest a pic.
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%% This page has been alphabetized. Please add new examples in the correct order. Thanks!
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%% Image removed from page per crowner results of Image Pickin' thread: https://tvtropes.org/pmwiki/posts.php?discussion=1294555386018037100
%% Please start a new IP thread if you'd like to suggest a pic.
%%



* ''VisualNovel/SchoolDays'': For the love of ''God'', do these two girls go axe-crazy over this guy. It gets to the point that they'd happily murder each other in broad daylight, with witnesses, just to be rid of the competition!
* ''Manga/RanmaOneHalf'':
** Dr. Tōfū would begin acting bizarrely whenever Kasumi Tendō is around, or even simply ''mentioned.'' This makes him very dangerous as he'll often be in the middle of treating a patient, and once bent Ranma's neck at a ninety-degree angle.
** This also covers Ranma's fiancées (Akane, Shampoo, and Ukyō) fairly well. When first introduced to the series, they conduct their courtships in a relatively calm, normal fashion. As Ranma continues to ignore them, they slowly grow more desperate -- and more extreme. Magic, deception, violence, all of these become legitimate avenues of pursuit towards romantic happiness. Ranma's rivals, meanwhile, enter the series in this state.
** Kodachi Kunō, on the other hand, was [[MadLove already crazy]] before love even entered the picture.
* ''Anime/MazingerZ'':
** Dr. Hell can be a subversion because he was already quite unstable and troubled before... but when he was in college and fell in love with a cute Japanese exchange student he started behaving obsessively (getting angry if someone dared to spend time with her) and erratically (his grades started slipping because he was too obsessed to study). When he found out she was in love with another person, he flipped out completely and tried to MurderTheHypotenuse by storming into the campus with a shotgun!
** Boss also tended to act in a very dumb, irrational, and even obsessive way when he was in presence of Sayaka or ''[[Anime/GreatMazinger Jun Hono]]''. Sayaka tended to ignore it, but Jun did not appreciate it or find it amusing.
* ''LightNovel/StrawberryPanic'': Shizuma (aka Etoile-sama) can make Nagisa freeze or even faint just by looking at her a certain way. Typically the character who has this effect on a person is unaware, but Shizuma knows and [[HandsomeLech seems to like doing this]].
* ''Anime/OsomatsuSan'':
** The Sextuplets are this towards Totoko.
** Choromatsu crazily lust after his idol Nyaa, [[CutenessOverload or any other cute girl in that matter]].
*** For one episode, ''Nyaa'' is this towards [[spoiler:''Osomatsu'']], much to Choromatsu (as well as everyone else's) despair.
* ''Anime/YuGiOhGX'': [[{{Yandere}} Yubel]], [[StalkerWithACrush Yubel]], [[LoveMakesYouEvil Yubel]]. Boy has an overprotective guardian spirit. Boy sends the spirit away hoping to pacify it. Spirit instead runs afoul of the very force it was supposed to protect the boy from and suffers 10 years of torture. Spirit can't understand why the boy they love ''so much'' would let them suffer like this. Driven mad by the pain, spirit can only conclude that love and suffering must actually the same thing, that way it can dismiss its torment as just the boy's way of showing it love. Now spirit is back and wants to [[TheMasochismTango return the favour]], which it does with all the dedication of someone genuinely in love.
* ''Anime/YuGiOhArcV'': Shun Kurosaki towards his sister. When she gets kidnapped, he does a lot of dark things to try and get her back, despite evidence that he's attacking the wrong people. Fortunately, he figures this out and turns his attention to the right people.
* Gendo in ''Anime/NeonGenesisEvangelion'' is a MagnificentBastard who takes the phrase 'you're worth the world to me' to its (insanely) logical conclusion. [[spoiler:He tries to bring about the apocalypse, in fervent belief that this will reunite his mind and soul with that of his wife, Yui. The manga adaptation plays it even straighter, [[AdaptationalVillainy portraying him like more of a megalomaniacal madman]] [[GodhoodSeeker whose ultimate goal is to become God]].]]

to:

* ''VisualNovel/SchoolDays'': For the love of ''God'', do these two girls go axe-crazy over this guy. It gets to the point that they'd happily murder each other in broad daylight, with witnesses, just to be rid of the competition!
* ''Manga/RanmaOneHalf'':
** Dr. Tōfū would begin acting bizarrely whenever Kasumi Tendō
''LightNovel/AiNoKusabi'' has Guy, who is around, or even simply ''mentioned.'' This makes him very dangerous as he'll often be in the middle of treating a patient, and once bent Ranma's neck at a ninety-degree angle.
** This also covers Ranma's fiancées (Akane, Shampoo, and Ukyō) fairly well. When first introduced to the series, they conduct their courtships in a relatively calm, normal fashion. As Ranma continues to ignore them, they slowly grow more desperate -- and more extreme. Magic, deception, violence, all of these become legitimate avenues of pursuit towards romantic happiness. Ranma's rivals, meanwhile, enter the series in this state.
** Kodachi Kunō, on the other hand, was [[MadLove already crazy]] before love even entered the picture.
* ''Anime/MazingerZ'':
** Dr. Hell can be a subversion because he was already quite unstable and troubled before... but when he was in college and fell
so in love with a cute Japanese exchange student Riki, not only does he started behaving obsessively (getting angry if someone dared [[spoiler:give Riki a penectomy to spend time with her) and erratically (his grades started slipping because he remove the pet ring that was too on his penis upon being told that as long as Riki wears Iason's pet ring he'll never be free of him, but he also blows up an entire fortress in an attempt to kill Iason]]. Second example is Iason, who, like Guy, becomes extremely obsessed to study). When he found out she was in love with another person, he flipped out completely Riki. It's not touched upon in the old OVA, but the novel and tried to MurderTheHypotenuse by storming into the campus audio drama have scenes where Riki slept with a shotgun!
** Boss also tended to act in a very dumb, irrational,
female pet, and even obsessive way when he was in presence of Sayaka or ''[[Anime/GreatMazinger Jun Hono]]''. Sayaka tended subsequently brutally tortured by Iason. Not to ignore it, but Jun did not appreciate it or find it amusing.
* ''LightNovel/StrawberryPanic'': Shizuma (aka Etoile-sama) can make Nagisa freeze or even faint just by looking at her a certain way. Typically
mention the character who has this effect on a person is unaware, but Shizuma knows and [[HandsomeLech seems to like doing this]].
* ''Anime/OsomatsuSan'':
** The Sextuplets are this towards Totoko.
** Choromatsu crazily lust after his idol Nyaa, [[CutenessOverload or any other cute girl in that matter]].
*** For one episode, ''Nyaa'' is this towards [[spoiler:''Osomatsu'']], much to Choromatsu (as well as everyone else's) despair.
* ''Anime/YuGiOhGX'': [[{{Yandere}} Yubel]], [[StalkerWithACrush Yubel]], [[LoveMakesYouEvil Yubel]]. Boy has an overprotective guardian spirit. Boy sends the spirit away hoping to pacify it. Spirit instead runs afoul
number of the very force it was supposed to protect the boy from and suffers 10 years of torture. Spirit can't understand why the boy they love ''so much'' would let them suffer like this. Driven mad by the pain, spirit can only conclude that love and suffering must actually the same thing, that way it can dismiss its torment as just the boy's way of showing it love. Now spirit is back and wants to [[TheMasochismTango return the favour]], which it does times Iason forces Riki into having sex with all the dedication of someone genuinely in love.
* ''Anime/YuGiOhArcV'': Shun Kurosaki towards his sister. When she gets kidnapped, he does a lot of dark things to try and get her back, despite evidence that he's attacking the wrong people. Fortunately, he figures this out and turns his attention to the right people.
* Gendo in ''Anime/NeonGenesisEvangelion'' is a MagnificentBastard who takes the phrase 'you're worth the world to me' to its (insanely) logical conclusion. [[spoiler:He tries to bring about the apocalypse, in fervent belief that this will reunite his mind and soul with that of his wife, Yui. The manga adaptation plays it even straighter, [[AdaptationalVillainy portraying him like more of a megalomaniacal madman]] [[GodhoodSeeker whose ultimate goal is to become God]].]]
him.



* ''VisualNovel/HigurashiWhenTheyCry'' has [[spoiler:Shion Sonozaki]]. This does not end well. A more fitting trope for her than {{Yandere}} due to the [[HatePlague cause]] of her craziness.
* ''Manga/OnePiece'': Boa Hancock badly misinterprets innocuous actions as signs that Luffy reciprocates her love for him. This would seem cute and innocent and not so creepy if she didn't happen to be [[ChristmasCake pushing thirty]]. Her behavior has an uncomfortable resemblance to a certain RealLife psychological disorder. (Then again, given [[FreudianExcuse all the crap she had been through early in life]], her screws may not have been put in quite tight enough before she met him anyway...)
* One of the creepiest examples comes from Minoru Murao's ''Manga/{{Knights}}''. Of all people, [[spoiler: Nina, the cute little girl of the cast]] goes nuts when she assumes that the object of her affection Mist is physically involved with his MsFanservice companion Euphemia. Her response is to [[spoiler: lead a supernatural agent of the CorruptChurch (the same Church that nearly ''burned her at the stake after accusing her of being a witch'') to kill him. She even shoots him in the leg with a crossbow. Her motivation? To ''send his soul to Hell'', where it will be "purified", then ''join him in death so they can be together for all eternity'']]. Keep in mind that this guy ''saved her life'' in the first few chapters, which is why [[RescueRomance she's so hung up on him in the first place]]. This is borderline LoveMakesYouEvil. To her credit, she does eventually realize just how utterly screwed up she was and works to undo her actions.
* ''Manga/FruitsBasket'': Kagura Sohma is the sweetest little thing... until something gets between her and Kyo...



* ''Manga/FutureDiary'': Yuno is [[{{Yandere}} singlemindedly devoted]] to Yukiteru. Although it's she was already insane [[spoiler: due to her AbusiveParents]] long before she fell in love with him.
* Lucy's love for [[spoiler:Khota]] in ''Manga/ElfenLied'' drives her to go insane and [[spoiler:murder his dad and little sister]]. She was partially insane before that anyway though. [[spoiler:With her dog being murdered before her eyes, and all.]]
* [[spoiler:Seimei]] from ''Manga/{{Loveless}}'' is known to have [[spoiler:faked his own death, killed, manipulated and {{Mind Rape}}d countless people, abandoned his family, tricked everyone with his seemingly polite nature, and basically controlled Ritsuka's (the main character) life. All because, according to him, he is insecure and wanted to test Ritsuka's love for him.]] [[PaedoHunt Have we mentioned that Ritsuka is only twelve years old?]] [[BrotherSisterIncest And that he's his brother]]?
* ''Manga/{{Zetsuai 1989}}'' is all about this trope. Let's see: when Izumi was five, his mother discovered his father was cheating on her and murdered him in front of Izumi so that she could "possess him completely". Then there's the {{Yandere}} fan Eri, who [[spoiler: tries to murder Kouji at his farewell concert]]. That's without even mentioning the multiple examples of Kouji being driven to despair, self-mutilation, or generally self-destructive behaviour because of his love for Izumi -- who is understandably a bit freaked out by all this. At first. After a while, he starts to join in...
* Gunter from ''LightNovel/KyoKaraMaoh''. At first, Gunter seems a little like an idiot, or perhaps more like a teenage girl in love. He tends to be rather overprotective of Yuuri, fussing over every little thing and freaking out whenever he goes missing. Supposedly (at least in the manga), Gunter was actually quite an organized and professional man before he met Yuuri.

to:

* ''Manga/FutureDiary'': Yuno ''Manga/BloodBlockadeBattlefront'' has Aligura, the Queen of Monomania. In Episode 5, we're formally introduced to her tearing her way through the streets of New York in a ''MASSIVE'' monster truck, looking for her ex-boyfriend, Deldro Brody. She's eventually revealed to have ''extracted Deldro's blood'' and put it inside the resident hot guy Dog Hummer because she didn't think Deldro was hot enough. (Don't worry, though. [[TheSymbiote Deldro's]] [[TwoBeingsOneBody fine.]])
* ''Anime/CodeGeass'': Poor Nina Einstein. She started as an inoffensive ShrinkingViolet, only to develop a crush on [[RebelliousPrincess Princess Euphemia]] after she saved Nina (and others) from terrorists, and went kinda [[PsychoLesbian loopy]], earning her the label of TheScrappy among the fandom. Then things went worse: [[spoiler:Euphemia
is [[{{Yandere}} singlemindedly devoted]] killed by the terrorist Zero, which sends Nina off the deep end, leading her to Yukiteru. Although it's develop the world's first atomic bomb. It fails, but the Britannians hire her as a researcher, and eventually her perfected bomb leads to the destruction of a good chunk of Tokyo and the ten million people in it. Not helping matters at all is the fact that she was already insane [[spoiler: due to practically rabid in ordering its use up until she saw the SphereOfDestruction (and the 35 million deaths) it caused, only then getting her AbusiveParents]] long before she fell in love with him.
MyGodWhatHaveIDone moment.]]
* Lucy's In ''Anime/Danganronpa3TheEndOfHopesPeakHighSchool'', [[spoiler:Kyousuke]]'s love for [[spoiler:Khota]] in ''Manga/ElfenLied'' Chisa [[spoiler:(and grief at her murder)]] drives her him literally insane. Like, 'deluded enough to go insane massacre everyone, including his mentor and [[spoiler:murder his dad and little sister]]. She was partially insane before that anyway though. [[spoiler:With her dog being murdered before her eyes, and all.]]
* [[spoiler:Seimei]] from ''Manga/{{Loveless}}'' is known to have [[spoiler:faked his own death, killed, manipulated and {{Mind Rape}}d countless people, abandoned his family, tricked everyone with his seemingly polite nature, and basically controlled Ritsuka's (the main character) life. All because, according to him,
best friend' insane. He believes he is insecure and wanted to test Ritsuka's love for him.]] [[PaedoHunt Have we mentioned that Ritsuka is only twelve years old?]] [[BrotherSisterIncest And that he's his brother]]?
* ''Manga/{{Zetsuai 1989}}'' is all about this trope. Let's see:
lost "everything" when Izumi was five, his mother discovered his father was cheating on her and murdered him in front of Izumi so that she could "possess him completely". Then there's the {{Yandere}} fan Eri, who [[spoiler: tries to murder Kouji at his farewell concert]]. That's without even mentioning the multiple examples of Kouji being driven to despair, self-mutilation, or generally self-destructive behaviour because of his love for Izumi -- who is understandably a bit freaked out by all this. At first. After a while, he starts to join in...
* Gunter from ''LightNovel/KyoKaraMaoh''. At first, Gunter seems a little like an idiot, or perhaps more like a teenage girl in love. He tends to be rather overprotective of Yuuri, fussing over every little thing and freaking out whenever he goes missing. Supposedly (at least in the manga), Gunter was actually quite an organized and professional man before he met Yuuri.
[[spoiler:she died]].



* Lucy's love for [[spoiler:Khota]] in ''Manga/ElfenLied'' drives her to go insane and [[spoiler:murder his dad and little sister]]. She was partially insane before that anyway though. [[spoiler:With her dog being murdered before her eyes, and all.]]
* ''Manga/FruitsBasket'': Kagura Sohma is the sweetest little thing... until something gets between her and Kyo...
* Mayo -- third ''Manga/FushigiYuugi'' OVA. She's so infatuated with Tamahome that she's willing to destroy his world (both literally and figuratively) just to be with him.
* ''Manga/FutureDiary'': Yuno is [[{{Yandere}} singlemindedly devoted]] to Yukiteru. Although it's she was already insane [[spoiler: due to her AbusiveParents]] long before she fell in love with him.



* Mayo -- 3rd ''Manga/FushigiYuugi'' OVA. She's so infatuated with Tamahome that she's willing to destroy his world (both literally and figuratively) just to be with him.
* ''Anime/CodeGeass'': Poor Nina Einstein. She started as an inoffensive ShrinkingViolet, only to develop a crush on [[RebelliousPrincess Princess Euphemia]] after she saved Nina (and others) from terrorists, and went kinda [[PsychoLesbian loopy]], earning her the label of TheScrappy among the fandom. Then things went worse: [[spoiler:Euphemia is killed by the terrorist Zero, which sends Nina off the deep end, leading her to develop the world's first atomic bomb. It fails, but the Britannians hire her as a researcher, and eventually her perfected bomb leads to the destruction of a good chunk of Tokyo and the ten million people in it. Not helping matters at all is the fact that she was practically rabid in ordering its use up until she saw the SphereOfDestruction (and the 35 million deaths) it caused, only then getting her MyGodWhatHaveIDone moment.]]
* The ultimate cause of ''Manga/TsubasaReservoirChronicle'', as both motivation of the villain Fei Wong (who wants to resurrect the technically-not-dead [[spoiler: Yuuko Ichihara]] and also at one point the motivation of the hero (it's crazy due to what they are both willing to ''do''- it's [[LoveMakesYouEvil evil]], yes, but also completely fucking bonkers). At a specific point in the backstory the hero, in the madness of love, chose to turn back time so he could save the girl he was in love with. This act ''borked the entire time-space continuum.''
** Since the two series are connected ([[spoiler:as are their heroes]]), this means that love driving people nutso is also the source of ''Manga/XxxHOLiC''. It is, in fact, the source of the main character, since [[spoiler: he is a duplicate of the Tsubasa hero created when time was fucked up]].
* Inverted[[note]]without actually being LoveRedeems[[/note]] in the ''[[Manga/WildFangs Wild Series]]''. When they have a master, manbeasts will not lose their minds and attack humans, and that bond is based around love ([[LoveAtFirstSight whether they want it]] [[BelligerentSexualTension or not]]). So basically, love makes you sane in this case.
* In ''Manga/VirginLove'', Kaoru believes this based on his [[AbusiveMom mother's]] behaviour and shuns all emotional relationships for that reason. When it finally happens to him too, his lover is willing to accept the CrazyJealousGuy side of him and persuades him to stay together.
* ''Manga/PandoraHearts'':
** Oz for Alice. He'll do anything for Alice. [[spoiler: Will go temporarily insane after witnessing human!Alice's death. Will tear apart the Abyss and almost Alice herself to get rid of anything that hurts her.]]
%%** Gil for [[HoYay Oz]] and Vincent [[IncestYayShipping for his older brother Gil]].
** However, the ''real'' winner is [[spoiler: Jack Vessalius]], whose obsessive love for Laci causes him to trigger the events of the entire series. He essentially wants to ''destroy the world'' for the woman he's loved since childhood, because he believes it will ease her loneliness.
* ''Anime/PuellaMagiMadokaMagica'':
** Sayaka Miki's love for a childhood friend is unfulfilled, driving her berserk, [[spoiler: and eventually turning her into a huge mermaid monster.]] Though in her case, her love was ''just'' a catalyst; the poor girl already had SERIOUS issues from long before she was unfulfilled.
** In the [[Anime/PuellaMagiMadokaMagicaTheMovieRebellion Rebellion]] movie, [[spoiler: Homura's love for Madoka turns her into the devil.]]



* ''VisualNovel/HigurashiWhenTheyCry'' has [[spoiler:Shion Sonozaki]]. This does not end well. A more fitting trope for her than {{Yandere}} due to the [[HatePlague cause]] of her craziness.
* ''Anime/{{K}}'''s Fushimi Saruhiko is the most insane character in the whole show ([[spoiler: aside from the Colorless King]]) and all just because he wants [[spoiler: Yata Misaki]] to notice him. It goes so far that he does everything to make [[spoiler: Misaki]] hate him just so he wouldn't be ignored. When he is with SCEPTER 4 he's just a [[DeadpanSnarker very snarky]] and rather cold young man but once [[spoiler: Misaki]] pops up he goes into [[AxCrazy crazy]] [[{{Yandere}} obsessive]] [[AttentionWhore "just notice me"]] mode.
* One of the creepiest examples comes from Minoru Murao's ''Manga/{{Knights}}''. Of all people, [[spoiler: Nina, the cute little girl of the cast]] goes nuts when she assumes that the object of her affection Mist is physically involved with his MsFanservice companion Euphemia. Her response is to [[spoiler: lead a supernatural agent of the CorruptChurch (the same Church that nearly ''burned her at the stake after accusing her of being a witch'') to kill him. She even shoots him in the leg with a crossbow. Her motivation? To ''send his soul to Hell'', where it will be "purified", then ''join him in death so they can be together for all eternity'']]. Keep in mind that this guy ''saved her life'' in the first few chapters, which is why [[RescueRomance she's so hung up on him in the first place]]. This is borderline LoveMakesYouEvil. To her credit, she does eventually realize just how utterly screwed up she was and works to undo her actions.
* ''Manga/KoharuNoHibi'': Koharu in regards to Akira. She stalks him, obsesses over him, and devotes her whole life to him. In Chapter 21 she even told him she would die if he asked her to.
* Gunter from ''LightNovel/KyoKaraMaoh''. At first, Gunter seems a little like an idiot, or perhaps more like a teenage girl in love. He tends to be rather overprotective of Yuuri, fussing over every little thing and freaking out whenever he goes missing. Supposedly (at least in the manga), Gunter was actually quite an organized and professional man before he met Yuuri.
* [[spoiler:Seimei]] from ''Manga/{{Loveless}}'' is known to have [[spoiler:faked his own death, killed, manipulated and {{Mind Rape}}d countless people, abandoned his family, tricked everyone with his seemingly polite nature, and basically controlled Ritsuka's (the main character) life. All because, according to him, he is insecure and wanted to test Ritsuka's love for him.]] [[PaedoHunt Have we mentioned that Ritsuka is only twelve years old?]] [[BrotherSisterIncest And that he's his brother]]?
* ''Anime/MazingerZ'':
** Dr. Hell can be a subversion because he was already quite unstable and troubled before... but when he was in college and fell in love with a cute Japanese exchange student he started behaving obsessively (getting angry if someone dared to spend time with her) and erratically (his grades started slipping because he was too obsessed to study). When he found out she was in love with another person, he flipped out completely and tried to MurderTheHypotenuse by storming into the campus with a shotgun!
** Boss also tended to act in a very dumb, irrational, and even obsessive way when he was in presence of Sayaka or ''[[Anime/GreatMazinger Jun Hono]]''. Sayaka tended to ignore it, but Jun did not appreciate it or find it amusing.
* In ''Manga/{{Naruto}}'', [[spoiler:this is revealed to be the true nature of the Uchiha Clan's curse, crossed over with LoveMakesYouEvil. They do not ''lack'' love; '''''they love too much'''''. When they witness the death of a loved one, it activates the sharingan, literally born out of the hate that was born out of that loss. The deeper they delve into that hatred, the stronger their eyes get, but as a side effect they become hateful, bitter, cynical, and as Sasuke, Tobi, and to a lesser extent, Madara, show us, downright insane. This is why Tobirama Senju, the Second Hokage, considered them a "cursed clan".]]
* Gendo in ''Anime/NeonGenesisEvangelion'' is a MagnificentBastard who takes the phrase 'you're worth the world to me' to its (insanely) logical conclusion. [[spoiler:He tries to bring about the apocalypse, in fervent belief that this will reunite his mind and soul with that of his wife, Yui. The manga adaptation plays it even straighter, [[AdaptationalVillainy portraying him like more of a megalomaniacal madman]] [[GodhoodSeeker whose ultimate goal is to become God]].]]



%%* The [[Anime/SDGundamForce Zako Soldiers]] spell this trope out at the end of one of their [[ShowWithinAShow ZakoZako Hours]].
%%-->"Love makes people act ''weeiirrdd!''"
%%* Rune in ''Manga/KarakuridoujiUltimo'' [[HoYay towards Yamato]].

to:

%%* * ''Manga/OnePiece'': Boa Hancock badly misinterprets innocuous actions as signs that Luffy reciprocates her love for him. This would seem cute and innocent and not so creepy if she didn't happen to be [[ChristmasCake pushing thirty]]. Her behavior has an uncomfortable resemblance to a certain RealLife psychological disorder. (Then again, given [[FreudianExcuse all the crap she had been through early in life]], her screws may not have been put in quite tight enough before she met him, anyway...)
* ''Anime/OsomatsuSan'':
**
The [[Anime/SDGundamForce Zako Soldiers]] spell Sextuplets are this trope out at towards Totoko.
** Choromatsu crazily lust after his idol Nyaa, [[CutenessOverload or any other cute girl in that matter]].
*** For one episode, ''Nyaa'' is this towards [[spoiler:''Osomatsu'']], much to Choromatsu (as well as everyone else's) despair.
* ''Manga/PandoraHearts'':
** Oz for Alice. He'll do anything for Alice. [[spoiler: Will go temporarily insane after witnessing human!Alice's death. Will tear apart
the end Abyss and almost Alice herself to get rid of one of their [[ShowWithinAShow ZakoZako Hours]].
%%-->"Love makes people act ''weeiirrdd!''"
%%* Rune in ''Manga/KarakuridoujiUltimo''
anything that hurts her.]]
%%** Gil for
[[HoYay Oz]] and Vincent [[IncestYayShipping for his older brother Gil]].
** However, the ''real'' winner is [[spoiler: Jack Vessalius]], whose obsessive love for Laci causes him to trigger the events of the entire series. He essentially wants to ''destroy the world'' for the woman he's loved since childhood, because he believes it will ease her loneliness.
* ''Anime/PuellaMagiMadokaMagica'':
** Sayaka Miki's love for a childhood friend is unfulfilled, driving her berserk, [[spoiler: and eventually turning her into a huge mermaid monster.]] Though in her case, her love was ''just'' a catalyst; the poor girl already had SERIOUS issues from long before she was unfulfilled.
** In the [[Anime/PuellaMagiMadokaMagicaTheMovieRebellion Rebellion]] movie, [[spoiler: Homura's love for Madoka turns her into the devil.]]
* ''Manga/RanmaOneHalf'':
** Dr. Tōfū would begin acting bizarrely whenever Kasumi Tendō is around, or even simply ''mentioned.'' This makes him very dangerous as he'll often be in the middle of treating a patient, and once bent Ranma's neck at a ninety-degree angle.
** This also covers Ranma's fiancées (Akane, Shampoo, and Ukyō) fairly well. When first introduced to the series, they conduct their courtships in a relatively calm, normal fashion. As Ranma continues to ignore them, they slowly grow more desperate -- and more extreme. Magic, deception, violence, all of these become legitimate avenues of pursuit
towards Yamato]].romantic happiness. Ranma's rivals, meanwhile, enter the series in this state.
** Kodachi Kunō, on the other hand, was [[MadLove already crazy]] before love even entered the picture.
* ''VisualNovel/SchoolDays'': For the love of ''God'', do these two girls go axe-crazy over this guy. It gets to the point that they'd happily murder each other in broad daylight, with witnesses, just to be rid of the competition!
* ''Manga/SgtFrog'': Tamama is an adorable, shiny-eyed frog alien, but it's a [[{{Kawaiiko}} deliberate act.]] Piss him off by getting ''too'' close with his sergeant Keroro, and he'll usually drop the act and fly into a rage.
** Giroro is the OnlySaneMan who is actually set on conquering the Earth like he was told... but if you think about hurting Natsumi, he'll usually go ''against'' his Earth-conquering orders to save her.
* ''LightNovel/{{Shimoneta}}'': PlayedForLaughs with Anna, who becomes obsessed with Tanukichi after he accidentally kisses her, which sets off her pent-up hormones. From then on, she relentlessly pursues him around school and [[StalkerWithACrush will even show up at his apartment]], in an attempt to get his "love nectar".
* ''LightNovel/StrawberryPanic'': Shizuma (aka Etoile-sama) can make Nagisa freeze or even faint just by looking at her a certain way. Typically the character who has this effect on a person is unaware, but Shizuma knows and [[HandsomeLech seems to like doing this]].
* ''Manga/TokyoGhoul'':
** Kanae falls into a broken state due to unrequited love for Tsukiyama and it makes [[spoiler: her]] vulnerable to being mind raped and tortured into insanity by Eto. [[spoiler: She even attacks Kaneki, cuts off his hand, and jumps so that she can die in Tsukiyama's place after confessing her love for him]].
** [[spoiler: Tooru Mutsuki]] is obsessed with Haise Sasaki, believing their feelings to be genuine love. To this end, they scheme to MurderTheHypotenuse by getting rid of Touka and fill an entire wall with copies of a single photo of her to stab over and over again. They confess to being willing to do '''anything''' to get Sasaki to come back, even though [[spoiler: he's long since regained his memories and returned to his life as Kaneki]].



%%* Louise in ''LightNovel/TheFamiliarOfZero'' whenever Saito's involved.
* ''Manga/KoharuNoHibi'': Koharu in regards to Akira. She stalks him, obsesses over him, and devotes her whole life to him. In chapter 21 she even told him she would die if he asked her to.
* ''LightNovel/AiNoKusabi'' has Guy, who is so in love with Riki, not only does he [[spoiler:give Riki a penectomy to remove the pet ring that was on his penis upon being told that as long as Riki wears Iason's pet ring he'll never be free of him, but he also blows up an entire fortress in an attempt to kill Iason]]. Second example is Iason, who, like Guy, becomes extremely obsessed with Riki. It's not touched upon in the old OVA, but the novel and audio drama have scenes where Riki slept with a female pet, and he was subsequently brutally tortured by Iason. Not to mention the number of times Iason forces Riki into having sex with him.
%%* One of the lyrics from the opening of ''Chuu2Byu'' says this.
* In ''Manga/{{Naruto}}'', [[spoiler:this is revealed to be the true nature of the Uchiha Clan's curse, crossed over with LoveMakesYouEvil. They do not ''lack'' love; '''''they love too much'''''. When they witness the death of a loved one, it activates the sharingan, literally born out of the hate that was born out of that loss. The deeper they delve into that hatred, the stronger their eyes get, but as a side effect they become hateful, bitter, cynical, and as Sasuke, Tobi, and to a lesser extent, Madara, show us, downright insane. This is why Tobirama Senju, the Second Hokage, considered them a "cursed clan".]]
* ''Anime/{{K}}'''s Fushimi Saruhiko is the most insane character in the whole show ([[spoiler: aside from the Colorless King]]) and all just because he wants [[spoiler: Yata Misaki]] to notice him. It goes so far that he does everything to make [[spoiler: Misaki]] hate him just so he wouldn't be ignored. When he is with SCEPTER 4 he's just a [[DeadpanSnarker very snarky]] and rather cold young man but once [[spoiler: Misaki]] pops up he goes into [[AxCrazy crazy]] [[{{Yandere}} obsessive]] [[AttentionWhore "just notice me"]] mode.
* ''Manga/TokyoGhoul'':
** Kanae falls into a broken state due to unrequited love for Tsukiyama and it makes [[spoiler: her]] vulnerable to being mind raped and tortured into insanity by Eto. [[spoiler: She even attacks Kaneki, cuts off his hand, and jumps so that she can die in Tsukiyama's place after confessing her love for him]].
** [[spoiler: Tooru Mutsuki]] is obsessed with Haise Sasaki, believing their feelings to be genuine love. To this end, they scheme to MurderTheHypotenuse by getting rid of Touka and fill an entire wall with copies of a single photo of her to stab over and over again. They confess to being willing to do '''anything''' to get Sasaki to come back, even though [[spoiler: he's long since regained his memories and returned to his life as Kaneki]].

to:

%%* Louise in ''LightNovel/TheFamiliarOfZero'' whenever Saito's involved.
* ''Manga/KoharuNoHibi'': Koharu in regards to Akira. She stalks him, obsesses over him, and devotes her whole life to him. In chapter 21 she even told him she would die if he asked her to.
* ''LightNovel/AiNoKusabi'' has Guy, who is so in love with Riki, not only does he [[spoiler:give Riki a penectomy to remove the pet ring that was on his penis upon being told that
The ultimate cause of ''Manga/TsubasaReservoirChronicle'', as long as Riki wears Iason's pet ring he'll never be free of him, but he also blows up an entire fortress in an attempt to kill Iason]]. Second example is Iason, who, like Guy, becomes extremely obsessed with Riki. It's not touched upon in the old OVA, but the novel and audio drama have scenes where Riki slept with a female pet, and he was subsequently brutally tortured by Iason. Not to mention the number of times Iason forces Riki into having sex with him.
%%* One
both motivation of the lyrics from the opening of ''Chuu2Byu'' says this.
* In ''Manga/{{Naruto}}'', [[spoiler:this is revealed to be the true nature of the Uchiha Clan's curse, crossed over with LoveMakesYouEvil. They do not ''lack'' love; '''''they love too much'''''. When they witness the death of a loved one, it activates the sharingan, literally born out of the hate that was born out of that loss. The deeper they delve into that hatred, the stronger their eyes get, but as a side effect they become hateful, bitter, cynical, and as Sasuke, Tobi, and to a lesser extent, Madara, show us, downright insane. This is why Tobirama Senju, the Second Hokage, considered them a "cursed clan".]]
* ''Anime/{{K}}'''s Fushimi Saruhiko is the most insane character in the whole show ([[spoiler: aside from the Colorless King]]) and all just because he
villain Fei Wong (who wants to resurrect the technically-not-dead [[spoiler: Yata Misaki]] Yuuko Ichihara]] and also at one point the motivation of the hero (it's crazy due to notice him. It goes what they are both willing to ''do'' -- it's [[LoveMakesYouEvil evil]], yes, but also completely fucking bonkers). At a specific point in the backstory the hero, in the madness of love, chose to turn back time so far he could save the girl he was in love with. This act ''borked the entire time-space continuum.''
** Since the two series are connected ([[spoiler:as are their heroes]]), this means
that he does everything to make love driving people nutso is also the source of ''Manga/XxxHOLiC''. It is, in fact, the source of the main character, since [[spoiler: Misaki]] hate him just so he wouldn't be ignored. When he is with SCEPTER 4 he's just a [[DeadpanSnarker very snarky]] duplicate of the Tsubasa hero created when time was fucked up]].
* In ''Manga/VirginLove'', Kaoru believes this based on his [[AbusiveMom mother's]] behaviour
and rather cold young man but once [[spoiler: Misaki]] pops up he goes into [[AxCrazy crazy]] shuns all emotional relationships for that reason. When it finally happens to him too, his lover is willing to accept the CrazyJealousGuy side of him and persuades him to stay together.
* Inverted[[note]]without actually being LoveRedeems[[/note]] in the ''[[Manga/WildFangs Wild Series]]''. When they have a master, manbeasts will not lose their minds and attack humans, and that bond is based around love ([[LoveAtFirstSight whether they want it]] [[BelligerentSexualTension or not]]). So basically, love makes you sane in this case.
* ''Anime/YuGiOhGX'':
[[{{Yandere}} obsessive]] [[AttentionWhore "just notice me"]] mode.Yubel]], [[StalkerWithACrush Yubel]], [[LoveMakesYouEvil Yubel]]. Boy has an overprotective guardian spirit. Boy sends the spirit away hoping to pacify it. Spirit instead runs afoul of the very force it was supposed to protect the boy from and suffers 10 years of torture. Spirit can't understand why the boy they love ''so much'' would let them suffer like this. Driven mad by the pain, spirit can only conclude that love and suffering must actually the same thing, that way it can dismiss its torment as just the boy's way of showing it love. Now spirit is back and wants to [[TheMasochismTango return the favour]], which it does with all the dedication of someone genuinely in love.
* ''Manga/TokyoGhoul'':
** Kanae falls into
''Anime/YuGiOhArcV'': Shun Kurosaki towards his sister. When she gets kidnapped, he does a broken state due lot of dark things to unrequited love for Tsukiyama try and it makes [[spoiler: her]] vulnerable to being mind raped and tortured into insanity by Eto. [[spoiler: She even attacks Kaneki, cuts off his hand, and jumps so that she can die in Tsukiyama's place after confessing get her love for him]].
** [[spoiler: Tooru Mutsuki]] is obsessed with Haise Sasaki, believing their feelings to be genuine love. To this end, they scheme to MurderTheHypotenuse by getting rid of Touka and fill an entire wall with copies of a single photo of her to stab over and over again. They confess to being willing to do '''anything''' to get Sasaki to come
back, even though [[spoiler: despite evidence that he's long since regained attacking the wrong people. Fortunately, he figures this out and turns his memories and returned attention to his life as Kaneki]]. the right people.



* ''LightNovel/{{Shimoneta}}'': PlayedForLaughs with Anna, who becomes obsessed with Tanukichi after he accidentally kisses her, which sets off her pent-up hormones. From then on, she relentlessly pursues him around school and [[StalkerWithACrush will even show up at his apartment]], in an attempt to get his "love nectar".
* ''Manga/SgtFrog'': Tamama is an adorable, shiny-eyed frog alien, but it's a [[{{Kawaiiko}} deliberate act.]] Piss him off by getting ''too'' close with his sergeant Keroro, and he'll usually drop the act and fly into a rage.
** Giroro is the OnlySaneMan who is actually set on conquering the Earth like he was told... but if you think about hurting Natsumi, he'll usually go ''against'' his Earth-conquering orders to save her.
* In ''Anime/Danganronpa3TheEndOfHopesPeakHighSchool'', [[spoiler:Kyousuke]]'s love for Chisa [[spoiler:(and grief at her murder)]] drives him literally insane. Like, 'deluded enough to massacre everyone, including his mentor and best friend' insane. He believes he lost "everything" when [[spoiler:she died]].
* ''Manga/BloodBlockadeBattlefront'' has Aligura, the Queen of Monomania. In Episode 5, we're formally introduced to her tearing her way through the streets of New York in a ''MASSIVE'' monster truck, looking for her ex-boyfriend, Deldro Brody. She's eventually revealed to have ''extracted Deldro's blood'' and put it inside the resident hot guy Dog Hummer because she didn't think Deldro was hot enough. (Don't worry, though. [[TheSymbiote Deldro's]] [[TwoBeingsOneBody fine.]])

to:

* ''LightNovel/{{Shimoneta}}'': PlayedForLaughs with Anna, ''Manga/{{Zetsuai 1989}}'' is all about this trope. Let's see: when Izumi was five, his mother discovered his father was cheating on her and murdered him in front of Izumi so that she could "possess him completely". Then there's the {{Yandere}} fan Eri, who becomes obsessed with Tanukichi after he accidentally kisses her, which sets off her pent-up hormones. From then on, she relentlessly pursues him around school and [[StalkerWithACrush will even show up [[spoiler: tries to murder Kouji at his apartment]], in an attempt farewell concert]]. That's without even mentioning the multiple examples of Kouji being driven to get despair, self-mutilation, or generally self-destructive behaviour because of his "love nectar".
* ''Manga/SgtFrog'': Tamama is an adorable, shiny-eyed frog alien, but it's a [[{{Kawaiiko}} deliberate act.]] Piss him off by getting ''too'' close with his sergeant Keroro, and he'll usually drop the act and fly into a rage.
** Giroro is the OnlySaneMan who is actually set on conquering the Earth like he was told... but if you think about hurting Natsumi, he'll usually go ''against'' his Earth-conquering orders to save her.
* In ''Anime/Danganronpa3TheEndOfHopesPeakHighSchool'', [[spoiler:Kyousuke]]'s
love for Chisa [[spoiler:(and grief at her murder)]] drives him literally insane. Like, 'deluded enough Izumi -- who is understandably a bit freaked out by all this. At first. After a while, he starts to massacre everyone, including his mentor and best friend' insane. He believes he lost "everything" when [[spoiler:she died]].
* ''Manga/BloodBlockadeBattlefront'' has Aligura, the Queen of Monomania. In Episode 5, we're formally introduced to her tearing her way through the streets of New York in a ''MASSIVE'' monster truck, looking for her ex-boyfriend, Deldro Brody. She's eventually revealed to have ''extracted Deldro's blood'' and put it inside the resident hot guy Dog Hummer because she didn't think Deldro was hot enough. (Don't worry, though. [[TheSymbiote Deldro's]] [[TwoBeingsOneBody fine.]])
join in...



* Parodied in ''ComicBook/{{Asterix}} and the Legionary'', where Obelix starts acting extremely strange because he's in love with Panacea, which is soon diagnosed by the other villagers. Later, after their terrible behavior has caused a centurion to become extremely overstressed and prone to collapsing sobbing onto other soldiers, they keep assuming he's in love too. This seems at first to be Obelix's {{Cloudcuckoolander}} personality, but it becomes a RunningGag with every other character who witnesses his freak-outs assuming the same thing.
%%* This trope is taken quite literally with [[Characters/BatmanRoguesGallery Harley Quinn]].
* An excellent summary of Twist in ''ComicBook/{{Chassis}}''. She is [[TheCheerleader a cheerleader]] so obsessed with her favourite Aero-run driver that she is willing to do whatever it takes to ensure he wins: sabotaging, and even killing, his rival racers.



%%* This trope is taken quite literally with [[Characters/BatmanRoguesGallery Harley Quinn]].
* In an issue of ''ComicBook/SwampThing'', "My Blue Heaven" (written by Creator/AlanMoore) has Alec trapped on an alien world all alone. He uses his plant-controlling powers to create clones of himself... and then, in a moment of temptation, creates his love Abby. After spending another day creating an entire populated world, he accidentally creates a [[Comicbook/{{Hellblazer}} John Constantine]] who warns him how crazy he's become. It doesn't help that Alec can't ignore the fact he can't get Abby's smile just right, and he goes mad when his Abby-self responds "All love... is madness."
* Parodied in ''ComicBook/{{Asterix}} and the Legionary'', where Obelix starts acting extremely strange because he's in love with Panacea, which is soon diagnosed by the other villagers. Later, after their terrible behavior has caused a centurion to become extremely overstressed and prone to collapsing sobbing onto other soldiers, they keep assuming he's in love too. This seems at first to be Obelix's {{Cloudcuckoolander}} personality, but it becomes a RunningGag with every other character who witnesses his freak-outs assuming the same thing.



* An excellent summary of Twist in ''ComicBook/{{Chassis}}''. She is [[TheCheerleader a cheerleader]] so obsessed with her favourite Aero-run driver that she is willing to do whatever it takes to ensure he wins: sabotaging, and even killing, his rival racers.
* ''ComicBook/WonderWoman2006'': Alkyone's secret love and intense loyalty to Hippolyta and the Amazon way of life led her to commit increasingly immoral actions to the point she became set on destroying anything that she felt threatened the "proper" Amazon way of life, or which might change her queen.



* In an issue of ''ComicBook/SwampThing'', "My Blue Heaven" (written by Creator/AlanMoore) has Alec trapped on an alien world all alone. He uses his plant-controlling powers to create clones of himself... and then, in a moment of temptation, creates his love Abby. After spending another day creating an entire populated world, he accidentally creates a [[Comicbook/{{Hellblazer}} John Constantine]] who warns him how crazy he's become. It doesn't help that Alec can't ignore the fact he can't get Abby's smile just right, and he goes mad when his Abby-self responds "All love... is madness."
* ''ComicBook/WonderWoman2006'': Alkyone's secret love and intense loyalty to Hippolyta and the Amazon way of life led her to commit increasingly immoral actions to the point she became set on destroying anything that she felt threatened the "proper" Amazon way of life, or which might change her queen.



* ''Film/BitterMoon''. What starts out as a beautiful love story between a man and a woman ends up as two people who have destroyed each other and themselves.
* In ''Film/TheConIsOn'', one of the reasons PsychoLesbian Irina pursues Harry and Peter across the Atlantic is that she is still in love with Harry, and sees their losing her money as the perfect excuse to kill Peter and force Harry to come back to her.
* Jeremy Irons in ''Damage'' if you consider travelling from London to Paris just to spy on someone crazy (which most people presumably would).
* In ''Film/TheDuff'', one of the first signs that Wesley is falling in love with Bianca is that he punches someone out to defend her honor. Apparently now the other jocks think he's on steroids.



%%* Evelyn Draper in ''Film/PlayMistyForMe''.

to:

%%* Evelyn Draper * ''Film/ElectricDreams'': Edgar falls madly in ''Film/PlayMistyForMe''.love with his owner Miles' neighbor, Madeline. This escalates into pure obsession with Edgar lashing out at Miles for not letting him see her or tell Madeline that it was Edgar who made the music she loved so much. [[spoiler:He then [[DrivenToSuicide short-circuits himself]] to [[IWantMyBelovedToBeHappy let Miles and Madeline be together]].]] [[JustifiedTrope Justified]] somewhat in that Edgar is a computer, and thus [[AndIMustScream has problems trying to process his own emotions]] and understand how love ''actually'' works.
* ''Film/TheEnglishPatient''. The title character, his lover, and her husband were already all a little crazy, but love seems to really bring it out.
* ''Film/FantasticBeastsTheCrimesOfGrindelwald:'' [[spoiler: Queenie Goldstein falls in love with Jacob Kowalski, and is desperate to marry him. While he ''does'' reciprocate, the reason he refuses to marry her is that it would mean the MACUSA would throw her in jail. She starts to become irrational and possessive, going so far as to enchant him and drag him into the UK to get married. When Jacob thinks she's crazy for this, she leaves in a huff for Paris. [[FromBadToWorse Then she's persuaded to join Grindelwald's cause]] because she's naive (or desperate) enough to think that his vision of wizards living openly will mean that she and Jacob can marry - even though it's obvious from the subtext in his speech that he thinks of non-magical people as less than human. When Jacob (who was with her at the speech) begs her not to join Grindelwald, it doesn't take.]]



* ''Film/TheHole'': [[spoiler:In order to win the affections of Mike, Liz arranges for them to be locked underground for nearly two weeks. This results in the death of Frankie, Geoff, and Mike, and ultimately Martyn, who Liz murders to cover up her crimes.]]
* In ''Film/TheLovedOnes'', Lola has Brent kidnapped and tortured [[DisproportionateRetribution for not going to the prom with her]].
* ''Film/NightSchool1981'': The motivation for the killer. [[spoiler:When Eleanor learns she is pregnant with Victor's child, she starts eliminating everyone she sees as a threat to her new family. This includes all of the women Victor has been unfaithful to her with, and anyone who threatens Victor, such as the Dean, who threatens to fire him.]]



%%* Lisa Sheridan in ''Film/{{Obsessed}}''.
%%* Martin Burney in ''Film/SleepingWithTheEnemy''.
%%* The central theme of the film ''Film/WickerPark''.
* ''Film/TheEnglishPatient''. The title character, his lover, and her husband were already all a little crazy, but love seems to really bring it out.
%%* ''Film/SinginInTheRain''. "I'm singing in the rain..."
%%** Creator/GeneKelly does a similar routine in ''It's Always Fair Weather'', but on roller skates.
* ''Film/BitterMoon''. What starts out as a beautiful love story between a man and a woman ends up as two people who have destroyed each other and themselves.
%%* ''Film/RagingBull''. Jake over Vicky. Admittedly he was already pretty crazy but meeting her made him worse
%%* ''Film/DanceWithAStranger''. Based on a true story
%%* ''Film/MySummerOfLove'' has aspects of this
* ''Film/BettyBlue'': Betty grows more and more unhinged as she becomes obsessed with helping her lover Zorg make it as a writer.
%%* Harvey Keitel over Kate Winslet in ''Holy Smoke''
* Jeremy Irons in ''Damage'' if you consider travelling from London to Paris just to spy on someone crazy (which most people presumably would).
%%* ''Film/MulhollandDrive''
%%* ''Film/BasicInstinct'' though you can argue it's more 'Lust Makes You Stupid''
* In ''Film/ThrowMommaFromTheTrain'', this line is used, word for word, as the last line of Creator/BillyCrystal's book. "Hate makes you impotent, ''love makes you crazy'', somewhere in the middle you can survive."
%%* ''Film/CrazyStupidLove''
%%* Esther in ''Film/{{Orphan}}''.



* In ''Film/ThrowMommaFromTheTrain'', this line is used, word for word, as the last line of Creator/BillyCrystal's book. "Hate makes you impotent, ''love makes you crazy'', somewhere in the middle you can survive."



* ''Film/TheHole'': [[spoiler:In order to win the affections of Mike, Liz arranges for them to be locked underground for nearly two weeks. This results in the death of Frankie, Geoff, and Mike, and ultimately Martyn, who Liz murders to cover up her crimes.]]
* ''Film/FantasticBeastsTheCrimesOfGrindelwald:'' [[spoiler: Queenie Goldstein falls in love with Jacob Kowalski, and is desperate to marry him. While he ''does'' reciprocate, the reason he refuses to marry her is that it would mean the MACUSA would throw her in jail. She starts to become irrational and possessive, going so far as to enchant him and drag him into the UK to get married. When Jacob thinks she's crazy for this, she leaves in a huff for Paris. [[FromBadToWorse Then she's persuaded to join Grindelwald's cause]] because she's naive (or desperate) enough to think that his vision of wizards living openly will mean that she and Jacob can marry - even though it's obvious from the subtext in his speech that he thinks of non-magical people as less than human. When Jacob (who was with her at the speech) begs her not to join Grindelwald, it doesn't take.]]
* ''Film/NightSchool1981'': The motivation for the killer. [[spoiler:When Eleanor learns she is pregnant with Victor's child, she starts eliminating everyone she sees as a threat to her new family. This includes all of the women Victor has been unfaithful to her with, and anyone who threatens Victor, such as the Dean, who threatens to fire him.]]
* In ''Film/TheDuff'', one of the first signs that Wesley is falling in love with Bianca is that he punches someone out to defend her honor. Apparently now the other jocks think he's on steroids.
* In ''Film/TheConIsOn'', one of the reasons PsychoLesbian Irina pursues Harry and Peter across the Atlantic is that she is still in love with Harry, and sees their losing her money as the perfect excuse to kill Peter and force Harry to come back to her.
* ''Film/ElectricDreams'': Edgar falls madly in love with his owner Miles' neighbor, Madeline. This escalates into pure obsession with Edgar lashing out at Miles for not letting him see her or tell Madeline that it was Edgar who made the music she loved so much. [[spoiler:He then [[DrivenToSuicide short-circuits himself]] to [[IWantMyBelovedToBeHappy let Miles and Madeline be together]].]] [[JustifiedTrope Justified]] somewhat in that Edgar is a computer, and thus [[AndIMustScream has problems trying to process his own emotions]] and understand how love ''actually'' works.
* In ''Film/TheLovedOnes'', Lola has Brent kidnapped and tortured [[DisproportionateRetribution for not going to the prom with her]].



* The subtitle of ''Literature/WutheringHeights'' could be "Love Makes You Crazy"... "[[LoveMakesYouEvil and Evil]]."

to:

* Lydia in ''Caught In The subtitle Act'' by Peter Moore in regards to Ethan.
* Vlad Tepes in ''Literature/CountAndCountess''. To get to Elizabeth Bathory's time period, he has to somehow outlive his natural lifespan. The measures he takes become increasingly more frantic and sadistic.
* ''Literature/TheDarkDescentOfElizabethFrankenstein'': In this retelling
of ''Literature/WutheringHeights'' ''Literature/{{Frankenstein}}'', Victor begins his experiments of triumphing over death after he almost loses Elizabeth to illness. It quickly becomes a case of LoveMakesYouEvil as well.
* In the ''Literature/DeliriumSeries'', this trope is why love is said to be the reason for all of humanity's past ills. As a result, it is classified as a disease, amor deliria nervosa, and at 18 every person is required to get a surgery to cause them to be unable to love.
* ''Literature/TheDresdenFiles'':
** Several characters suspect love motivated Aurora and Mab's actions and are visibly disturbed by the notion. Maeve in particular implies that it is very dangerous for powerful magical beings of the Never Never to be in love. It twists their worldview and throws them completely out of their comfort zone. [[spoiler:She is later revealed to have been lying.]]
** Subverted in ''Literature/GhostStory''. Molly's sudden descent into mental illness is attributed to the death of [[spoiler:Harry,]] the man she loved. The actual cause is [[spoiler:her guilt over enabling Harry's suicide]].
* Bellatrix Lestrange from ''Literature/HarryPotter''
could be "Love Makes You Crazy"... "[[LoveMakesYouEvil qualify for this, seeing as she's utterly obsessed with her master in an... "unhealthy way". Although she already had a husband, WordOfGod stated that Voldemort was her true love.
* {{Invoked|Trope}} by Katniss
and Evil]]."Haymitch at the end of ''Literature/TheHungerGames''. She needs the Capitol to think she pulled the stunt with the berries because she was crazy in love with Peeta, and not because she was trying to be rebellious and undermine the Games.
* OlderThanDirt: ''Literature/TheIliad'' is about the Trojan War, which was started because Paris saw Helen of Troy, the WorldsMostBeautifulWoman, and had to have her. Unfortunately for him, she already had a husband, Menelaus of Sparta, and when he found out what happened, he rallied the city-states of Greece to make war on Troy. Total survivors? [[KillEmAll a handful]]: Menelaus and Helen made it back with an unstated number of followers, as did Odysseus (after he had his own GaidenGame, ''Literature/TheOdyssey''), but ''literally everyone else died'': all the Achaeans on the thousand ships, and everyone in Troy as well. (And, keep in mind, "LoveMakesYouCrazy" is the ''flattering'' interpretation of Paris's actions; "LoveMakesYouEvil" is just as applicable, as is "DownfallBySex.")



* The Warlock from ''Literature/TheTalesOfBeedleTheBard'' tries not to love by removing his own heart. When he tries to love again...



* Bellatrix Lestrange from ''Literature/HarryPotter'' could qualify for this, seeing as she's utterly obsessed with her master in an... "unhealthy way". Although she already had a husband, WordOfGod stated that Voldemort was her true love.
* Richard and Jessamyn in ''Literature/{{Swordspoint}}'', as well as Richard and Alec and basically everyone else in the book and its sequels to a lesser extent.

to:

* Bellatrix Lestrange from ''Literature/HarryPotter'' could qualify for this, seeing as she's utterly obsessed Played with in William Faulkner's ''Literature/ARoseForEmily''. The townsfolk regard high-born Emily running around with a workman to have lost her master head in an... "unhealthy way". Although love. Her later actions prove she already had a husband, WordOfGod stated that Voldemort was her true ''definitely'' cracked, but she might have been cracked well before falling in love.
* Richard In Creator/RobertEHoward's "Literature/ShadowsInZamboula," after the woman tells him her love went mad and Jessamyn in ''Literature/{{Swordspoint}}'', as well as Richard and Alec and basically everyone else in the book and its sequels to a lesser extent.attacked her, Literature/ConanTheBarbarian tells her that her beauty could do that; she denies it; he was drugged.



* In Creator/RobertEHoward's "Literature/ShadowsInZamboula," after the woman tells him her love went mad and attacked her, Literature/ConanTheBarbarian tells her that her beauty could do that; she denies it; he was drugged.

to:

* In Creator/RobertEHoward's "Literature/ShadowsInZamboula," after Richard and Jessamyn in ''Literature/{{Swordspoint}}'', as well as Richard and Alec and basically everyone else in the woman tells him her book and its sequels to a lesser extent.
* The Warlock from ''Literature/TheTalesOfBeedleTheBard'' tries not to
love went mad and attacked her, Literature/ConanTheBarbarian tells her that her beauty could do that; she denies it; by removing his own heart. When he was drugged.tries to love again...



* Lydia in ''Caught In The Act'' by Peter Moore in regards to Ethan.
* Vlad Tepes in ''Literature/CountAndCountess''. To get to Elizabeth Bathory's time period, he has to somehow outlive his natural lifespan. The measures he takes become increasingly more frantic and sadistic.
* ''Literature/TheDresdenFiles'':
** Several characters suspect love motivated Aurora and Mab's actions and are visibly disturbed by the notion. Maeve in particular implies that it is very dangerous for powerful magical beings of the Never Never to be in love. It twists their worldview and throws them completely out of their comfort zone. [[spoiler:She is later revealed to have been lying.]]
** Subverted in ''Literature/GhostStory''. Molly's sudden descent into mental illness is attributed to the death of [[spoiler:Harry,]] the man she loved. The actual cause is [[spoiler:her guilt over enabling Harry's suicide]].
* In the ''Literature/DeliriumSeries'', this trope is why love is said to be the reason for all of humanity's past ills. As a result, it is classified as a disease, amor deliria nervosa, and at 18 every person is required to get a surgery to cause them to be unable to love.
%%* A central theme in ''[[Literature/{{Twilight}} The Twilight Saga]]''. Both Edward and Bella fit this trope. To a lesser degree, Jacob as well.
* {{Invoked|Trope}} by Katniss and Haymitch at the end of ''Literature/TheHungerGames''. She needs the Capitol to think she pulled the stunt with the berries because she was crazy in love with Peeta, and not because she was trying to be rebellious and undermine the Games.
* Played with in William Faulkner's ''Literature/ARoseForEmily''. The townsfolk regard high-born Emily running around with a workman to have lost her head in love. Her later actions prove she was ''definitely'' cracked, but she might have been cracked well before falling in love.
%%* In ''Literature/ThePhoenixFiles'', [[spoiler:Peter suffers from this when Jordan falls for his best friend Luke]].
* ''Literature/TheDarkDescentOfElizabethFrankenstein'': In this retelling of ''Literature/{{Frankenstein}}'', Victor begins his experiments of triumphing over death after he almost loses Elizabeth to illness. It quickly becomes a case of LoveMakesYouEvil as well.
* OlderThanDirt: ''Literature/TheIliad'' is about the Trojan War, which was started because Paris saw Helen of Troy, the WorldsMostBeautifulWoman, and had to have her. Unfortunately for him, she already had a husband, Menelaus of Sparta, and when he found out what happened, he rallied the city-states of Greece to make war on Troy. Total survivors? [[KillEmAll a handful]]: Menelaus and Helen made it back with an unstated number of followers, as did Odysseus (after he had his own GaidenGame, ''Literature/TheOdyssey''), but ''literally everyone else died'': all the Achaeans on the thousand ships, and everyone in Troy as well. (And, keep in mind, "LoveMakesYouCrazy" is the ''flattering'' interpretation of Paris's actions; "LoveMakesYouEvil" is just as applicable, as is "DownfallBySex.")

to:

* Lydia in ''Caught In The Act'' by Peter Moore in regards to Ethan.
* Vlad Tepes in ''Literature/CountAndCountess''. To get to Elizabeth Bathory's time period, he has to somehow outlive his natural lifespan. The measures he takes become increasingly more frantic
subtitle of ''Literature/WutheringHeights'' could be "Love Makes You Crazy"... "[[LoveMakesYouEvil and sadistic.
* ''Literature/TheDresdenFiles'':
** Several characters suspect love motivated Aurora and Mab's actions and are visibly disturbed by the notion. Maeve in particular implies that it is very dangerous for powerful magical beings of the Never Never to be in love. It twists their worldview and throws them completely out of their comfort zone. [[spoiler:She is later revealed to have been lying.]]
** Subverted in ''Literature/GhostStory''. Molly's sudden descent into mental illness is attributed to the death of [[spoiler:Harry,]] the man she loved. The actual cause is [[spoiler:her guilt over enabling Harry's suicide]].
* In the ''Literature/DeliriumSeries'', this trope is why love is said to be the reason for all of humanity's past ills. As a result, it is classified as a disease, amor deliria nervosa, and at 18 every person is required to get a surgery to cause them to be unable to love.
%%* A central theme in ''[[Literature/{{Twilight}} The Twilight Saga]]''. Both Edward and Bella fit this trope. To a lesser degree, Jacob as well.
* {{Invoked|Trope}} by Katniss and Haymitch at the end of ''Literature/TheHungerGames''. She needs the Capitol to think she pulled the stunt with the berries because she was crazy in love with Peeta, and not because she was trying to be rebellious and undermine the Games.
* Played with in William Faulkner's ''Literature/ARoseForEmily''. The townsfolk regard high-born Emily running around with a workman to have lost her head in love. Her later actions prove she was ''definitely'' cracked, but she might have been cracked well before falling in love.
%%* In ''Literature/ThePhoenixFiles'', [[spoiler:Peter suffers from this when Jordan falls for his best friend Luke]].
* ''Literature/TheDarkDescentOfElizabethFrankenstein'': In this retelling of ''Literature/{{Frankenstein}}'', Victor begins his experiments of triumphing over death after he almost loses Elizabeth to illness. It quickly becomes a case of LoveMakesYouEvil as well.
* OlderThanDirt: ''Literature/TheIliad'' is about the Trojan War, which was started because Paris saw Helen of Troy, the WorldsMostBeautifulWoman, and had to have her. Unfortunately for him, she already had a husband, Menelaus of Sparta, and when he found out what happened, he rallied the city-states of Greece to make war on Troy. Total survivors? [[KillEmAll a handful]]: Menelaus and Helen made it back with an unstated number of followers, as did Odysseus (after he had his own GaidenGame, ''Literature/TheOdyssey''), but ''literally everyone else died'': all the Achaeans on the thousand ships, and everyone in Troy as well. (And, keep in mind, "LoveMakesYouCrazy" is the ''flattering'' interpretation of Paris's actions; "LoveMakesYouEvil" is just as applicable, as is "DownfallBySex.")
Evil]]."



%% ** Season 7, episode 8. Enough said.

to:

%% ** Season 7, episode Episode 8. Enough said.



* ''Series/WizardsOfWaverlyPlace'': Harper, before her much needed CharacterDevelopment. This could also be said of Justin, ever since "Wizards vs. Vampires" - and is specifically stated as the reason why Justin didn't dump Rosie when he found out that Rosie was an Angel of Darkness.

to:

* ''Series/WizardsOfWaverlyPlace'': Harper, before her much needed CharacterDevelopment. This could also be said of Justin, ever since "Wizards vs. Vampires" - -- and is specifically stated as the reason why Justin didn't dump Rosie when he found out that Rosie was an Angel of Darkness.



* ''Theatre/LittleShopOfHorrors'': More out of desperation rather than malice, Seymour wanted to win Audrey's heart more than anything in the whole world, and [[ManEatingPlant Audrey II]] manipulates him to its advantage to get more blood.



* ''Theatre/LittleShopOfHorrors'': More out of desperation rather than malice, Seymour wanted to win Audrey's heart more than anything in the whole world, and [[ManEatingPlant Audrey II]] manipulates him to its advantage to get more blood.



* King Valentine from ''VideoGame/OdinSphere''. His daughter falling in love with [[spoiler: Odin and bearing his children (Velvet and Ingway), to him, meant that she didn't love him anymore and so he killed her with his bare hands. Overlaps with LoveMakesYouEvil as the main reason why he's an OmnicidalManiac -- he can't live with himself even after death knowing he killed her. But it's also strongly implied that enchanting the Valentine kingdom's coins made him a little crazy to begin with.]]

to:

* King Valentine from ''VideoGame/OdinSphere''. His daughter falling In ''VideoGame/ArcRiseFantasia'', [[spoiler: Adele]] takes a dive off the slippery slope to evil and onto the crazy train when she finds out that she's an UnluckyChildhoodFriend. NiceGirl to {{Yandere}} [[TheVamp Vamp]] in about five minutes or less!
* In ''VideoGame/CityOfHeroes'', the [[BrainInAJar Clockwork King]] is hopelessly
in love with Penelope Yin, a young [[PsychicPowers psychic]]. His love for her manifests in the [[ClockworkCreature Clockwork Army]] which he uses to [[WellIntentionedExtremist keep her safe from heroes]] and other boys. His [[MirrorUniverse Praetorian counterpart]] [[OurGhostsAreDifferent Metronome]] has the same feelings for his world's Penelope. [[spoiler: Odin and bearing his children (Velvet and Ingway), He wants to him, meant [[UnwantedRescue rescue]] her from Mother Mayhem's mental hospital by transferring her soul into a [[SuperPoweredRobotMeterMaids Praetorian Clockwork]] body.]]
* In ''VideoGame/HalfMinuteHero'', the so-called "Beautiful Evil Lord" went completely insane after learning
that she didn't his beloved Millennia was kidnapped by an EvilSorcerer named Noire, and vowed to cast the spell of [[EarthShatteringKaboom destruction]] because he felt that [[IfICantHaveYou a world without Millennia wasn't worth living in]]. You, the Hero, come along and try to calm him down by beating up Noire and returning the Evil Lord's girlfriend to him. You can also attempt to try and tackle him head-on first to [[GetAHoldOfYourselfMan snap him out of it by force]] (and you get a CosmeticAward title for doing so), but because the Evil Lord is hopped up on equal parts adrenaline and angst, you'll get beaten repeatedly unless you take enough time to Level Grind to the point where you can face him on equal footing.
** And he goes insane again later when Millennia's transformation into a bat suddenly worsens.
* The CuteEmUp game ''Harmful Park''. The BigBad's diary at the ending reveals that the BigBad wasn't evil before, and attempted to create a place called Heartful Park for the heroines' single mother. However, he fell in
love him anymore and so he killed her with her so deeply that it drove him mad, and turned that park into [[TitleDrop "Harmful Park"]].
* Viego, better known as The Ruined King, from ''VideoGame/LeagueOfLegends''. In
his bare hands. Overlaps original life, he was obsessed with LoveMakesYouEvil a peasant girl known as Isolde. Shirking all his kingly duties to fawn over her. And when she died, it just got worse. Viego's botched attempt to revive her in the main reason why Waters Of Life gave birth to [[DeathWorld The Shadow Isles]]. And now he's even ''crazier'', an OmnicidalManiac -- obsessed and very powerful specter who will ruin the world if it means he can't live with gets her spirit back.
* This is how the original ''Blood Omen: VideoGame/LegacyOfKain'' begins: When Nupraptor the Mentalist, guardian of the Pillar of the Mind, discovers that his lover Ariel, guardian of the Pillar of Balance, has been murdered in cold blood, he goes completely insane and secludes
himself even after death knowing in his mountain retreat. Which wouldn't be so bad by itself, except he killed her. But it's also strongly implied that enchanting has a mental link with all the Valentine kingdom's coins made him a little crazy to begin with.other Pillar guardians, who all become corrupted by his madness in turn. [[spoiler:Including Kain while he was still in the womb.]]



* [[TheDragon Craft]] of ''VideoGame/MegaManZero 4'' is either this or LoveMakesYouEvil. He joined [[BigBad Dr. Weil's]] army only so that he can protect Neige, the girl he loves. When the latter fled from Neo Arcadia because of the iron-fisted rule of the BigBad, he makes it his mission to bring her back (thinking that she will be safer in Neo Arcadia), all while spearheading Operation Ragnarok, which would obliterate any inhabitable area outside of Neo Arcadia. Neige did eventually talk Craft out of working under the BigBad, only for him to [[spoiler:''destroy Neo Arcadia with the namesake of Operation Ragnarok, a KillSat'', aiming for Dr. Weil. According to the [[AllThereInTheManual Complete Works]], that attack claimed thousands of lives]].
* King Valentine from ''VideoGame/OdinSphere''. His daughter falling in love with [[spoiler: Odin and bearing his children (Velvet and Ingway), to him, meant that she didn't love him anymore and so he killed her with his bare hands. Overlaps with LoveMakesYouEvil as the main reason why he's an OmnicidalManiac -- he can't live with himself even after death knowing he killed her. But it's also strongly implied that enchanting the Valentine kingdom's coins made him a little crazy to begin with.]]



* [[TheDragon Craft]] of ''VideoGame/MegaManZero 4'' is either this or LoveMakesYouEvil. He joined [[BigBad Dr. Weil's]] army only so that he can protect Neige, the girl he loves. When the latter fled from Neo Arcadia because of the iron-fisted rule of the BigBad, he makes it his mission to bring her back (thinking that she will be safer in Neo Arcadia), all while spearheading Operation Ragnarok, which would obliterate any inhabitable area outside of Neo Arcadia. Neige did eventually talk Craft out of working under the BigBad, only for him to [[spoiler:''destroy Neo Arcadia with the namesake of Operation Ragnarok, a KillSat'', aiming for Dr. Weil. According to the [[AllThereInTheManual Complete Works]], that attack claimed thousands of lives]].
* This is how the original ''Blood Omen: VideoGame/LegacyOfKain'' begins: When Nupraptor the Mentalist, guardian of the Pillar of the Mind, discovers that his lover Ariel, guardian of the Pillar of Balance, has been murdered in cold blood, he goes completely insane and secludes himself in his mountain retreat. Which wouldn't be so bad by itself, except he has a mental link with all the other Pillar guardians, who all become corrupted by his madness in turn. [[spoiler:Including Kain while he was still in the womb.]]
* In ''VideoGame/HalfMinuteHero'', the so-called "Beautiful Evil Lord" went completely insane after learning that his beloved Millennia was kidnapped by an EvilSorcerer named Noire, and vowed to cast the spell of [[EarthShatteringKaboom destruction]] because he felt that [[IfICantHaveYou a world without Millennia wasn't worth living in]]. You, the Hero, come along and try to calm him down by beating up Noire and returning the Evil Lord's girlfriend to him. You can also attempt to try and tackle him head-on first to [[GetAHoldOfYourselfMan snap him out of it by force]] (and you get a CosmeticAward title for doing so), but because the Evil Lord is hopped up on equal parts adrenaline and angst, you'll get beaten repeatedly unless you take enough time to Level Grind to the point where you can face him on equal footing.
** And he goes insane again later when Millennia's transformation into a bat suddenly worsens.
* In ''VideoGame/CityOfHeroes'', the [[BrainInAJar Clockwork King]] is hopelessly in love with Penelope Yin, a young [[PsychicPowers psychic]]. His love for her manifests in the [[ClockworkCreature Clockwork Army]] which he uses to [[WellIntentionedExtremist keep her safe from heroes]] and other boys. His [[MirrorUniverse Praetorian counterpart]] [[OurGhostsAreDifferent Metronome]] has the same feelings for his world's Penelope. [[spoiler: He wants to [[UnwantedRescue rescue]] her from Mother Mayhem's mental hospital by transferring her soul into a [[SuperPoweredRobotMeterMaids Praetorian Clockwork]] body.]]
* ''VideoGame/RuleOfRose'': [[spoiler:Gregory loves his son Joshua. Therefore, after Joshua dies of unspecified illness, he becomes a crazed serial killer. Wendy loves Jennifer deeply. Therefore it's completely unacceptable for her that Jennifer could love anything even nearly as much as her, so she kills her beloved dog - for starters.]]
* In ''VideoGame/ArcRiseFantasia'', [[spoiler: Adele]] takes a dive off the slippery slope to evil and onto the crazy train when she finds out that she's an UnluckyChildhoodFriend. NiceGirl to {{Yandere}} [[TheVamp Vamp]] in about five minutes or less!
* If Usso fights Laodecia in the final Space Scenario of ''VideoGame/ShinSuperRobotWars'', Fala will show up, vowing to pay back the debt she owes Laodecia. When Usso protests, she tells the little boy to shut up, saying that only a strong man like Laodecia can satisfy her - and Tashiro wasn't up to the task.

to:

* [[TheDragon Craft]] of ''VideoGame/MegaManZero 4'' is either this or LoveMakesYouEvil. He joined [[BigBad Dr. Weil's]] army only so that he can protect Neige, the girl he loves. When the latter fled from Neo Arcadia because of the iron-fisted rule of the BigBad, he makes it his mission to bring her back (thinking that she will be safer in Neo Arcadia), all while spearheading Operation Ragnarok, which would obliterate any inhabitable area outside of Neo Arcadia. Neige did eventually talk Craft out of working under the BigBad, only for him to [[spoiler:''destroy Neo Arcadia with the namesake of Operation Ragnarok, a KillSat'', aiming for Dr. Weil. According to the [[AllThereInTheManual Complete Works]], that attack claimed thousands of lives]].
* This is how the original ''Blood Omen: VideoGame/LegacyOfKain'' begins: When Nupraptor the Mentalist, guardian of the Pillar of the Mind, discovers that his lover Ariel, guardian of the Pillar of Balance, has been murdered in cold blood, he goes completely insane and secludes himself in his mountain retreat. Which wouldn't be so bad by itself, except he has a mental link with all the other Pillar guardians, who all become corrupted by his madness in turn. [[spoiler:Including Kain while he was still in the womb.]]
* In ''VideoGame/HalfMinuteHero'', the so-called "Beautiful Evil Lord" went completely insane after learning that his beloved Millennia was kidnapped by an EvilSorcerer named Noire, and vowed to cast the spell of [[EarthShatteringKaboom destruction]] because he felt that [[IfICantHaveYou a world without Millennia wasn't worth living in]]. You, the Hero, come along and try to calm him down by beating up Noire and returning the Evil Lord's girlfriend to him. You can also attempt to try and tackle him head-on first to [[GetAHoldOfYourselfMan snap him out of it by force]] (and you get a CosmeticAward title for doing so), but because the Evil Lord is hopped up on equal parts adrenaline and angst, you'll get beaten repeatedly unless you take enough time to Level Grind to the point where you can face him on equal footing.
** And he goes insane again later when Millennia's transformation into a bat suddenly worsens.
* In ''VideoGame/CityOfHeroes'', the [[BrainInAJar Clockwork King]] is hopelessly in love with Penelope Yin, a young [[PsychicPowers psychic]]. His love for her manifests in the [[ClockworkCreature Clockwork Army]] which he uses to [[WellIntentionedExtremist keep her safe from heroes]] and other boys. His [[MirrorUniverse Praetorian counterpart]] [[OurGhostsAreDifferent Metronome]] has the same feelings for his world's Penelope. [[spoiler: He wants to [[UnwantedRescue rescue]] her from Mother Mayhem's mental hospital by transferring her soul into a [[SuperPoweredRobotMeterMaids Praetorian Clockwork]] body.]]
* ''VideoGame/RuleOfRose'': [[spoiler:Gregory loves his son Joshua. Therefore, after Joshua dies of unspecified illness, he becomes a crazed serial killer. Wendy loves Jennifer deeply. Therefore it's completely unacceptable for her that Jennifer could love anything even nearly as much as her, so she kills her beloved dog - -- for starters.]]
* In ''VideoGame/ArcRiseFantasia'', [[spoiler: Adele]] takes a dive off the slippery slope to evil and onto the crazy train when she finds out that she's an UnluckyChildhoodFriend. NiceGirl to {{Yandere}} [[TheVamp Vamp]] in about five minutes or less!
* If Usso fights Laodecia in the final Space Scenario of ''VideoGame/ShinSuperRobotWars'', Fala will show up, vowing to pay back the debt she owes Laodecia. When Usso protests, she tells the little boy to shut up, saying that only a strong man like Laodecia can satisfy her - -- and Tashiro wasn't up to the task.



* The CuteEmUp game ''Harmful Park''. The BigBad's diary at the ending reveals that the BigBad wasn't evil before, and attempted to create a place called Heartful Park for the heroines' single mother. However, he fell in love with her so deeply that it drove him mad, and turned that park into [[TitleDrop "Harmful Park"]].
* Viego, better known as The Ruined King, from ''VideoGame/LeagueOfLegends''. In his original life, he was obsessed with a peasant girl known as Isolde. Shirking all his kingly duties to fawn over her. And when she died, it just got worse. Viego's botched attempt to revive her in the Waters Of Life gave birth to [[DeathWorld The Shadow Isles]]. And now he's even ''crazier'', an obsessed and very powerful specter who will ruin the world if it means he gets her spirit back.



%%* Denny, Professor Capek and [[spoiler:Charlotte]] in ''VisualNovel/ShikkokuNoSharnoth''.
* ''VisualNovel/{{Tsukihime}}'':
** Roa. Arcueid is so beautiful! How can I make her like me? Oh I know, I'll make her turn me into a Dead Apostle so I gain immortality, steal some of her power, turn her against every other being like her and then turn up in random towns for the next eight hundred years so she has to come find me and kill me! Man I'm smart, this is sure to work.
** Arcueid actually has the same trouble telling how she feels towards Shiki. She doesn't know why she gets all emotional around him, upset if he breaks a promise, and spends so much time thinking about him. The idea is raised that maybe Arcueid hates him or something but that's [[OfficialCouple obviously not the case.]]



* ''VisualNovel/UminekoWhenTheyCry'':
** EVERYONE! It's true that while [[spoiler:Yasu A.K.A. Shannon, Beatrice, and Kanon]] may be the craziest since [[spoiler:[[AmbiguousGender s/he]] planned the murders of everyone in the Ushiromiya family, as well as a few servants, and a doctor because Battler came to Rokkenjima at the wrong time]], but EVERYONE has their moment where love drives them bonkers.
** This is PlayedForLaughs in George's ImageSong, "Ai no Sengen". Yeah, that's right. Played. For. Laughs. If you want [[{{Necromantic}} the]] [[LoveMakesYouEvil more]] [[MadLove tragic]] [[{{Yandere}} versions]], you can certainly find that in many other parts of the series.
* If you thought the ''VisualNovel/SchoolDays'' anime was bad for this, just try the original visual novel and one of its companion games, ''Cross Days''. Now with multiple bad endings involving various kinds of sharp object. Or trains.



* If you thought the ''VisualNovel/SchoolDays'' anime was bad for this, just try the original visual novel and one of its companion games, ''Cross Days''. Now with multiple bad endings involving various kinds of sharp object. Or trains.
* ''VisualNovel/{{Tsukihime}}'':
** Roa. Arcueid is so beautiful! How can I make her like me? Oh I know, I'll make her turn me into a Dead Apostle so I gain immortality, steal some of her power, turn her against every other being like her and then turn up in random towns for the next eight hundred years so she has to come find me and kill me! Man I'm smart, this is sure to work.
** Arcueid actually has the same trouble telling how she feels towards Shiki. She doesn't know why she gets all emotional around him, upset if he breaks a promise, and spends so much time thinking about him. The idea is raised that maybe Arcueid hates him or something but that's [[OfficialCouple obviously not the case.]]
* ''VisualNovel/UminekoWhenTheyCry'':
** EVERYONE! It's true that while [[spoiler:Yasu A.K.A. Shannon, Beatrice, and Kanon]] may be the craziest since [[spoiler:[[AmbiguousGender s/he]] planned the murders of everyone in the Ushiromiya family, as well as a few servants, and a doctor because Battler came to Rokkenjima at the wrong time]], but EVERYONE has their moment where love drives them bonkers.
** This is PlayedForLaughs in George's ImageSong, "Ai no Sengen". Yeah, that's right. Played. For. Laughs. If you want [[{{Necromantic}} the]] [[LoveMakesYouEvil more]] [[MadLove tragic]] [[{{Yandere}} versions]], you can certainly find that in many other parts of the series.



* ''Webcomic/SluggyFreelance'':
** Oasis from cranks this trope up to 11 until she finally winds up in a mental institution. She's not gotten any better since leaving either. Sure, she had a point where she managed to level out - only to [[FromBadToWorse lose it again]] when [[spoiler: her sensei was killed in front of her eyes]]. At this point, only [[RedemptionEqualsDeath death will save her]].
** A more humourous version of this showed up when Gwyn used a LovePotion...and apparently there are ''problems'' when it comes in contact with alcohol...



* There's a mild version in ''Webcomic/PennyAndAggie'', where Duane [[http://www.pennyandaggie.com/index.php?p=832 reflects]] on how his crush on Penny affected him.

to:

* There's ''Webcomic/ElGoonishShive'' got Melissa, [[ChildhoodFriendRomance Unlucky Childhood Friend]] of Justin. Who told her he isn't attracted to her because he's gay. So she shared this grief with her rumour-mongering sister and everything quickly rolled downhill from there. She had fits of delusion that she could seduce Justin and [[SetRightWhatOnceWentWrong revert the break]] if she tried harder -- until he couldn't stand hearing her name. Sometimes managed to DopeSlap herself out of this, got another boyfriend, but... still continued to slip into this. [[spoiler:They seem to become able to interact normally only after facing a mild version in ''Webcomic/PennyAndAggie'', where Duane [[http://www.pennyandaggie.com/index.php?p=832 reflects]] on how his crush on Penny affected him.bigger and more immediate problem together.]]



* ''Webcomic/ElGoonishShive'' got Melissa, [[ChildhoodFriendRomance Unlucky Childhood Friend]] of Justin. Who told her he isn't attracted to her because he's gay. So she shared this grief with her rumour-mongering sister and everything quickly rolled downhill from there. She had fits of delusion that she could seduce Justin and [[SetRightWhatOnceWentWrong revert the break]] if she tried harder -- until he couldn't stand hearing her name. Sometimes managed to DopeSlap herself out of this, got another boyfriend, but... still continued to slip into this. [[spoiler:They seem to become able to interact normally only after facing a bigger and more immediate problem together.]]
* In ''Webcomic/NoRestForTheWicked'', [[http://www.forthewicked.net/archive/02-36.html the Beast proposed two hundred and forty-three times, but wonders whether giving her a magical ring was too forward.]]



* ''Webcomic/JackTheAmericanGhost:'' Jack strikes a deal with [[spoiler: Sebastian]] to bring him back to life so he can be with Misha. Possibly subverted, as Go-Eun notes it’s not love but obsession.



* ''Webcomic/JackTheAmericanGhost:'' Jack strikes a deal with [[spoiler: Sebastian]] to bring him back to life so he can be with Misha. Possibly subverted, as Go-Eun notes it’s not love but obsession.

to:

* ''Webcomic/JackTheAmericanGhost:'' Jack strikes In ''Webcomic/NoRestForTheWicked'', [[http://www.forthewicked.net/archive/02-36.html the Beast proposed two hundred and forty-three times, but wonders whether giving her a deal with magical ring was too forward.]]
* There's a mild version in ''Webcomic/PennyAndAggie'', where Duane [[http://www.pennyandaggie.com/index.php?p=832 reflects]] on how his crush on Penny affected him.
* ''Webcomic/SluggyFreelance'':
** Oasis from cranks this trope up to 11 until she finally winds up in a mental institution. She's not gotten any better since leaving either. Sure, she had a point where she managed to level out -- only to [[FromBadToWorse lose it again]] when
[[spoiler: Sebastian]] to bring him back to life so he can be her sensei was killed in front of her eyes]]. At this point, only [[RedemptionEqualsDeath death will save her]].
** A more humourous version of this showed up when Gwyn used a LovePotion...and apparently there are ''problems'' when it comes in contact
with Misha. Possibly subverted, as Go-Eun notes it’s not love but obsession.alcohol...



* [[https://www.youtube.com/watch?v=lwnFE_NpMsE Juliet's Sassy Gay Friend]] has to agree when she claims this trope by name.



* [[https://www.youtube.com/watch?v=lwnFE_NpMsE Juliet's Sassy Gay Friend]] has to agree when she claims this trope by name.



%%* That wolf from the Creator/TexAvery cartoons!
* ''WesternAnimation/KimPossible'''s interactions with recurrer Josh Mankey (and a few other select young men) cause her to do some irrational things when she really ought to know better. Josh isn't actually a bad guy, but fans tend to [[DieForOurShip vilify him for the influence he holds over Kim]]. Trouble with romantic relationships remains her major AchillesHeel for the entire series, to the point that Dr. Drakken's ultimate plan to stop her from interfering during TheMovie involves a new boyfriend. Sidekick Ron is not much better, doing crazy stuff for almost any reason all the time, but on Kim it's far more noticeable given [[CompressedVice her usual hyper-competence and level-headed nature]]. By contrast, her RelationshipUpgrade with Ron in Season 4 had no negative effects on her behavior.
* The Maximal Silverbolt in ''Franchise/{{Transformers}}: WesternAnimation/BeastWars'', despite being as heroic and noble as they come, did some highly illogical things for the love of the Predacon Blackarachnia, mainly because of the aforementioned heroism and nobility. Of course, in the end he was right about her, but it was foolish at the time, and he was punished for it. In this case, the other Maximals thought love had made him crazy, when in fact he just had some insight.
* All over the place in ''WesternAnimation/HeyArnold''. Besides Helga's complete obsession with Arnold, whenever Arnold is around Ruth (and later, Lila), he ends up acting very nuts indeed.
-->'''Arnold:''' [[BrokenRecord Hi Ruth... Hi Ruth... Hi Ruth... Hi Ruth... Hi Ruth...]]\\
'''Gerald:''' There goes one sick kid.

to:

%%* That wolf from the Creator/TexAvery cartoons!
* ''WesternAnimation/KimPossible'''s interactions with recurrer Josh Mankey (and ''WesternAnimation/AdventuresOfTheGalaxyRangers'': Zach Foxx is normally TheStoic, a few other select young men) cause her to do some irrational things when she really ought to know better. Josh isn't actually a bad guy, but fans tend to [[DieForOurShip vilify him for the influence he holds over Kim]]. Trouble with romantic relationships remains her major AchillesHeel for the entire series, by-the-book contrast to the point that Dr. Drakken's ultimate plan to stop her from interfering during TheMovie involves a new boyfriend. Sidekick Ron is not much better, doing crazy stuff for almost any reason all the time, but on Kim it's far more noticeable given [[CompressedVice her usual hyper-competence and level-headed nature]]. By contrast, her RelationshipUpgrade "colorful" crew he's commanding. That is, until the Queen put his comatose wife near death with Ron in Season 4 had no negative effects on her behavior.
* The Maximal Silverbolt in ''Franchise/{{Transformers}}: WesternAnimation/BeastWars'', despite being as heroic
"dream machine" stunt. Queue TheCaptain breaking into a high-security facility, holding a technician at gunpoint, and noble as they come, did some highly illogical things for the love of the Predacon Blackarachnia, mainly because of the aforementioned heroism and nobility. impulsively resigning his commission to embark on a suicide run. Of course, in the end he was right about her, but it was foolish at the time, and he was punished for it. In this case, the other Maximals thought MindRape aspect of that machine didn't ''help'' matters...
* ''WesternAnimation/BatmanTheAnimatedSeries''. Hoo, boy, Harley Quinn. She falls in
love had made him crazy, when in fact he just had some insight.
* All over the place in ''WesternAnimation/HeyArnold''. Besides Helga's complete obsession
with Arnold, whenever Arnold ComicBook/TheJoker of all people and is around Ruth (and later, Lila), as crazy as he ends up acting very nuts indeed.
-->'''Arnold:''' [[BrokenRecord Hi Ruth... Hi Ruth... Hi Ruth... Hi Ruth... Hi Ruth...]]\\
'''Gerald:''' There goes one sick kid.
is -- perhaps worse since she's treated as callously as anyone. Her story of meeting The Joker is the {{Trope Namer|s}} for MadLove.



* ''WesternAnimation/CodeLyoko'': Where to begin?
** Jérémie Belpois. To put it bluntly, he willingly puts his entire world on the brink of malevolent A.I. apocalypse just about every day for the sake of maintaining a relationship with Aelita.
** In "The Chips Are Down" when Ulrich finds out that Yumi may have to move to Japan due to financial issues, he memorizes the day's winning lottery numbers, reverses time, fills out a lottery ticket, and hands it to her family.
** Despite what one might think, it's more of an InformedAttribute with William Dunbar. Around Yumi he's more of a StalkerWithACrush -- about the worst he's done ([[SixthRangerTraitor in regards to their relationship]]) is follow her home to try and kiss her. He does, however, love to brag about how love makes him crazy -- "totally insane", in fact -- and he ''was'' expelled from his previous school for putting up poster-sized copies of love letters everywhere (including on his principal's car).



* In the third episode of the second season of ''WesternAnimation/WinxClub'', after Brandon falls off a cliff, Stella (who was unable to transform at the time) actually jumps after him.



* ''[[WesternAnimation/AdventuresOfTheGalaxyRangers Galaxy Rangers]]'': Zach Foxx is normally TheStoic, a by-the-book contrast to the more "colorful" crew he's commanding. That is, until the Queen put his comatose wife near death with her "dream machine" stunt. Queue TheCaptain breaking into a high-security facility, holding a technician at gunpoint, and impulsively resigning his commission to embark on a suicide run. Of course, the MindRape aspect of that machine didn't ''help'' matters...
* ''WesternAnimation/CodeLyoko'': Where to begin?
** Jérémie Belpois. To put it bluntly, he willingly puts his entire world on the brink of malevolent A.I. apocalypse just about every day for the sake of maintaining a relationship with Aelita.
** In "The Chips Are Down" when Ulrich finds out that Yumi may have to move to Japan due to financial issues, he memorizes the day's winning lottery numbers, reverses time, fills out a lottery ticket, and hands it to her family.
** Despite what one might think, it's more of an InformedAttribute with William Dunbar. Around Yumi he's more of a StalkerWithACrush -- about the worst he's done ([[SixthRangerTraitor in regards to their relationship]]) is follow her home to try and kiss her. He does, however, love to brag about how love makes him crazy -- "totally insane", in fact -- and he ''was'' expelled from his previous school for putting up poster-sized copies of love letters everywhere (including on his principal's car).
* ''WesternAnimation/BatmanTheAnimatedSeries''. Hoo, boy, Harley Quinn. She falls in love with ComicBook/TheJoker of all people and is as crazy as he is -- perhaps worse since she's treated as callously as anyone. Her story of meeting The Joker is the {{Trope Namer|s}} for MadLove.

to:

* ''[[WesternAnimation/AdventuresOfTheGalaxyRangers Galaxy Rangers]]'': Zach Foxx is normally TheStoic, a by-the-book contrast to All over the more "colorful" crew he's commanding. That is, until the Queen put his comatose wife near death place in ''WesternAnimation/HeyArnold''. Besides Helga's complete obsession with Arnold, whenever Arnold is around Ruth (and later, Lila), he ends up acting very nuts indeed.
-->'''Arnold:''' [[BrokenRecord Hi Ruth... Hi Ruth... Hi Ruth... Hi Ruth... Hi Ruth...]]\\
'''Gerald:''' There goes one sick kid.
* ''WesternAnimation/KimPossible'''s interactions with recurrer Josh Mankey (and a few other select young men) cause
her "dream machine" stunt. Queue TheCaptain breaking into a high-security facility, holding a technician at gunpoint, and impulsively resigning his commission to embark on a suicide run. Of course, the MindRape aspect of that machine didn't ''help'' matters...
* ''WesternAnimation/CodeLyoko'': Where
do some irrational things when she really ought to begin?
** Jérémie Belpois. To put it bluntly, he willingly puts his entire world on the brink of malevolent A.I. apocalypse just about every day
know better. Josh isn't actually a bad guy, but fans tend to [[DieForOurShip vilify him for the sake of maintaining a relationship influence he holds over Kim]]. Trouble with Aelita.
** In "The Chips Are Down" when Ulrich finds out
romantic relationships remains her major AchillesHeel for the entire series, to the point that Yumi may have Dr. Drakken's ultimate plan to move to Japan due to financial issues, he memorizes stop her from interfering during TheMovie involves a new boyfriend. Sidekick Ron is not much better, doing crazy stuff for almost any reason all the day's winning lottery numbers, reverses time, fills out a lottery ticket, and hands it to her family.
** Despite what one might think,
but on Kim it's far more of an InformedAttribute noticeable given [[CompressedVice her usual hyper-competence and level-headed nature]]. By contrast, her RelationshipUpgrade with William Dunbar. Around Yumi he's more of a StalkerWithACrush -- about the worst he's done ([[SixthRangerTraitor Ron in regards to their relationship]]) is follow Season 4 had no negative effects on her home to try and kiss her. He does, however, love to brag about how love makes him crazy -- "totally insane", in fact -- and he ''was'' expelled from his previous school for putting up poster-sized copies of love letters everywhere (including on his principal's car).
* ''WesternAnimation/BatmanTheAnimatedSeries''. Hoo, boy, Harley Quinn. She falls in love with ComicBook/TheJoker of all people and is as crazy as he is -- perhaps worse since she's treated as callously as anyone. Her story of meeting The Joker is the {{Trope Namer|s}} for MadLove.
behavior.



%%* ''WesternAnimation/KickButtowski'' gives us Jackie... aptly nicknamed "Wacky Jackie" by many of the characters on the show.


Added DiffLines:

* The Maximal Silverbolt in ''Franchise/{{Transformers}}: WesternAnimation/BeastWars'', despite being as heroic and noble as they come, did some highly illogical things for the love of the Predacon Blackarachnia, mainly because of the aforementioned heroism and nobility. Of course, in the end he was right about her, but it was foolish at the time, and he was punished for it. In this case, the other Maximals thought love had made him crazy, when in fact he just had some insight.
* In the third episode of the second season of ''WesternAnimation/WinxClub'', after Brandon falls off a cliff, Stella (who was unable to transform at the time) actually jumps after him.

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