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12->''"Because that's what people do. They leap and hope to God they can fly because otherwise they just drop like a rock, wondering the whole way down "Why in the ''hell'' did I jump?" But here I am, Sara, falling...and there's only one person who makes me feel like I can fly, and that's you."''
13-->-- '''Alex Hitchens''', ''Film/{{Hitch}}''
14
15When falling in love leads to the death of a character's brain cells. No matter how smart they might be, the right boy or girl will act as their personal IdiotBall. They'll attempt to look cool or impress their crush, only to inevitably make a fool of themselves in front of others.
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17[[LoveHurts Being in love is dangerous for a character.]] Occasionally, an (usually) main character, who more or less pulled his weight at the start of the series, starts to feel affection for another, and the writers like the idea. Suddenly, their own personal plot starts to become [[SatelliteCharacter almost]] ''[[SatelliteCharacter exclusively]]'' [[SatelliteCharacter about that]], and we have nothing to balance out the inherent goofiness and clumsiness that occurs dealing with their emotions. This has an extra layer of trouble if the {{Demographic|s}} of the viewers isn't too heavily interested in the romance, or romance in general. On the other hand, other demographics [[TruthInTelevision can relate]]. This can send someone on the edge of CantCatchUp straight into a ditch and relegate them to the sidelines of a story, especially if it's fairly clear that the writers haven't used the character for a while because they don't know what to do with them.
18
19If it isn't focus where they're hurt, it'll be their common sense. The {{Love Interest|s}} might even turn out to be manipulative or opportunistic, if not outright abusive. When friends of the character try to snap them out of it, they will be [[YoureJustJealous accused of jealousy]] by the lovestruck victim.
20
21Extremely common in {{Shonen}}. Female characters, in particular, often turn into a FauxActionGirl this way. For people who hold this as their viewpoint about love, see SillyRabbitRomanceIsForKids. For a specific form, see CannotTalkToWomen.
22
23SisterTrope to LustMakesYouDumb, the {{lust}} based counterpart, and FearInducedIdiocy, the fear based counterpart. Subtrope of TookALevelInDumbass. Granted, Dumb might be better than [[LoveMakesYouCrazy the]] [[LoveMakesYouEvil alternatives]]. Can (and probably will) lead to GibberishOfLove. See also LoveCanMakeYouGonk, DistractedByTheSexy, and RevengeRomance.
24
25Very much TruthInTelevision: if you don't have at least one story about being a monumentally dumb jackass on a date, when trying to attract the attention of a crush, or around a spouse or married one you just aren't even trying (and it's all the more reason to keep trying when you ''do'' make a complete fool of yourself. We've all done it).
26
27----
28!!Examples:
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30[[foldercontrol]]
31
32[[folder:Advertising]]
33* ''Advertising/CadburysCaramelBunny'': Other animals would act noticeablely more foolish after spotting the bunny. For example, [[https://www.youtube.com/watch?v=EjQ5Yw72xtA a beaver]] lets a tree with two squirrels on it fall to the ground, much to the squirrels' frustration.
34[[/folder]]
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36[[folder:Anime & Manga]]
37* In the ''Manga/{{Area 88}}'' manga and OVA, Ryoko has very [[WideEyedIdealist idealistic]] and [[{{Manchild}} immature]] ideas about love. To boot, she is determined to free Shin from servitude at Area 88 but never stops to ask why he might be in the Asranian air force in the first place. Finally, in manga issues that did not make it stateside, [[spoiler: Shin repeatedly breaks her heart, and yet she [[WhyWouldAnyoneTakeHimBack reunites with him]] in the end.]] In the manga, [[JerkassHasAPoint Kanzaki even calls her out on it.]]
38* ''Manga/{{Beastars}}'': Seems to run in the main character's family.
39** Legosi's grandmother Toki entered into an illegal marriage with a Komodo Dragon, which was illegal specifically to prevent what happened to her. She removed all of the antidote for Gosha's poison from the apartment without telling him and kissed him knowing it would mean certain death.
40** Legosi's mother Leano, upon learning that her Komodo Dragon half was beginning to express itself and was slowly turning her into a grotesque abomination of nature, had Legosi in a one-night stand and expressed her "love" for him by shutting herself in her room for his entire childhood until he was old enough to confirm that he was most definitely not growing scales... and then killed herself. Legosi may be healthy on the outside, but the poor boy is scarred for life now, even more so than he would've been if Leano took her own life immediately after he was born.
41** Legosi himself will go to any lengths to get with his rabbit waifu, including fighting the Yakuza... twice. Fortunately, this time it didn't end in his tragic death, though he's come close more than once and by the end of the manga he's got more holes in him than swiss cheese.
42* In ''Manga/{{Berserk}}'' Guts takes multiple arrows protecting Casca despite him already wounded by Adon’s arrow, there’s some justification for the first time it happened as Casca fainted from blood loss over period. But Guts TakingTheBullet later on for a completely healthy woman is just asking for trouble especially as Guts nearly gets killed because of it, though this action does make Casca fall in love with him so it equals out.
43** Griffith invokes this when Guts leaves the Band of Hawk, a rational leader (like Griffith was up until that point) would accept the loss of one soldier in the face of success... but Griffith chooses instead to cope by screwing the princess to fill the void [[HoYay Guts left]]. Unsurprisingly, Griffith gets imprisoned by the king and tortured for a year for his TragicMistake.
44* Ohgi of ''Franchise/CodeGeass'' was the voice of reason of the Black Knights, until he encountered and fell for Villetta. Needless to say, he became one-track-minded soon after and made some incredibly rash decisions, [[UnwittingInstigatorOfDoom not the least of which]] resulted in Lelouch being betrayed by the Black Knights.
45* Shuro from ''Manga/DeliciousInDungeon'' starts seriously neglecting his health and running himself ragged while on his quest to rescue [[spoiler:Falin, who he's in love with, from the dungeon. In the end, he's so badly off that he has to return to the surface and leave the search to Laios's party]].
46* ''Anime/DragonBallZ'': Krillin had the chance to shut down Android 18 and stop Cell from ever reaching his Perfect form. But because he developed feelings for her, he destroyed the only chance to stop it from happening. In his defense, Krillin thought that Vegeta, who had the upper hand over Cell, would kill Cell, and Trunks hadn't even need to step up yet, so he was caught off-guard that Vegeta would just let Cell have his way and sabotage the Dragon Team.
47* In ''Manga/InuYasha'', Sango commits some major blunders as a result of her concern for Kohaku and Miroku. These result in nearly getting herself and them killed on a few occasions, as well as nearly murdering Rin.
48* ''Manga/KaguyaSamaLoveIsWar'': In preparation for Shirogane's birthday, Kaguya buys him a huge birthday cake in the style of the one that Fujiwara had for her birthday. Hayasaka recognizes the overkill immediately, and it's only right before she gives it that Kaguya remembers that Fujiwara's birthday cake was much smaller -- and much less embarrassing. While she mulls over what to do, Kaguya imagines a court case between her "cold side" and her "dumb side," evoking a GoodAngelBadAngel conflict. Her dumb side advocates fiercely to give Shirogane the cake, being open, honest, and insistent about Kaguya's love for him.
49* ''Manga/MyDressUpDarling'': Marin Kitagawa is usually fashion conscious (she works part-time as a model after all), but when she takes Gojo to Shibuya to shop for clothing, [[SmittenTeenageGirl she's so dizzy in love with him]] that she thinks he can make anything he wears look good. Meanwhile, the shop clerk helping them is dumbfounded as to how tacky the outfits he tries are.
50* Sakura Haruno from ''Manga/{{Naruto}}'' in regards to Sasuke, it’s worth noting fans actually forget Sakura is a [[TheSmartGuy smart cookie]] but whenever her SingleTargetSexuality comes up, it renders her IQ somewhere around toddler level. At 12 years old, she was willing to leave her parents and village for a boy she’s hasn’t so much as had a proper conversation with and even three years later, she was willing to lie to her best male friend (Naruto) telling him that she loves so he’ll stop chasing after Sasuke. Oh, and when that fails miserably, Sakura tries to stop Sasuke herself (also failing because she “wuvs him too much”) nearly getting herself killed by Sasuke and is saved by her teacher and the boy she friend-zoned. Thankfully she got some CharacterDevelopment during the Ninja War and for once stops caring about Sasuke being more concerned with Naruto dying... [[spoiler:then Sasuke has one last HeelFaceTurn and Sakura [[EasilyForgiven forgives him completely]] despite him literally knocking her out again and later actually asks to join him when Sasuke leaves Konaha]].
51** To be fair to Sakura, ''many'' characters in ''Naruto'' suffer from this, like Karin who arguably has it worse than Sakura and even the sensible Hinata nearly gets herself killed needlessly over Naruto.
52* ''Manga/OnePiece'':
53** Happens frequently to Sanji in as, despite having [[TheStrategist brains]] to match his brawn, being in the company of Nami, Robin, or any beautiful woman makes [[HandsomeLech him]] dumber than IdiotHero Luffy. It’s actually PlayedForDrama in Whole Cake Island [[spoiler:as Pudding, his fiancée, betrays him; though Sanji is more angry at himself than her]].
54** Boa Hancock jeopardizes her position as a Shichibukai, potentially risking the wrath of TheGovernment, all to protect Luffy during the Marineford WarArc. Although given her eccentric and beautiful she is, she's forgiven very easily.
55** Usopp has a variation of this in Water 7 as he refuses to let go of the ''Going Merry'', a ship given to him by his pseudo-{{Love Interest|s}} Kaya, ensuring a fight between him and Luffy resulting in his leaving the crew. The thing is, the ''Merry'' was already gonna break apart and Usopp could've faced the truth without creating more heartache. That being said, Usopp saw the abandonment of the ''Merry'' as a potential fate of himself, seeing that he's the weakest link of the crew (not only is he one of the weakest members, his role on the ship is not as important as the others, and he just failed to guard their money twice in this arc) and that he's afraid that Luffy would eventually leave him behind like the ship. And he was the only one who met the "soul" of the ''Merry'' in the previous arc, which makes his attachment to his "friend" even more justifiable.
56* In ''Manga/{{Parasyte}}'', it's Kana Kimishima, whose SpiderSense could have become the best tool there is to keep herself safe from the abnormal Parasite hosts blended in society. What does she do with it? Use it to become a complete StalkerWithACrush for Shinichi whenever she senses Migi. [[spoiler:Her love makes her so dumb that it leads to her getting killed by a random Parasite she thought was Shinichi.]]
57* Brock in ''Anime/PokemonTheSeries'', who is usually the rational BigBrotherMentor to Ash and Misty (or May, Max, and Dawn), tended to lose his cool around beautiful women; especially [[InexplicablyIdenticalIndividuals Nurse Joy or Officer Jenny]] (and since both are ''everywhere'', this quickly became a running joke with him proclaiming the latest one was the fairest of them all).
58** Any Pokémon under the effects of Attract can be seen making a fool of themselves in the middle of battle. This becomes an InUniverse ThatOneAttack that easily gives the attacker an easy victory over their opponent, but none of the characters conveniently realize this, not even the main ChasteHero.
59* In ''Manga/PokemonAdventures'', Malva is an extremely competent DarkActionGirl, though it's also very clear that she wants to be in an UnholyMatrimony with [[BigBad Lysandre]]. [[spoiler: During the final battle, Lysandre is falling to his death. As Malva's distracted, the Talonflame she's riding goes down and she then leaps, unassisted, towards her boss. Diantha tries to save her, but Malva slaps her away. All Malva ended up doing was seemingly getting killed alongside him.]]
60* ''Manga/RanmaOneHalf''
61** Dr. Tofu is arguable since one of his traits from the start was the inability to function properly around Kasumi. Swiftly becomes a moot point, once he's [[PutOnABus replaced]] as the show's [[MrExposition source of arcane knowledge]] by Cologne.
62** Ryoga Hibiki does some pretty dumb things because of love as well. His unrequited desire for Akane's heart is his biggest emotional target, and he tends to go crazy when he thinks there's some sign she truly does love him back. At one point, he even considered staying in the [[{{Kimodameshi}} Cursed Tunnel of Lost Love]] because Akane was frightened by the ghosts and kept clinging to him for protection and comfort -- he figured that if he and Akane stayed there forever, she would always be turning to him for comfort. He gave it up mainly because the others caught him before he could run off with Akane and get lost in the tunnel.
63* ''Manga/RosarioPlusVampire'':
64** Tsukune Aono [[spoiler:before his power up]]. He doesn't come off as dumb at first, but common sense and obvious logic are trumped whenever Outer Moka is in trouble. We're talking to the extent he would take on the equivalent of an M1 Abrams Tank with a slingshot. He [[{{Determinator}} never gives up]] despite how bad the last time was.
65** Likewise, the various members of Tsukune's UnwantedHarem often end up doing some pretty idiotic and non-logical things in their attempts to win him over. For example, in ''[=Capu2=]'' Episode 8, Mizore, Kurumu, and Yukari get in a big fight in the human world over him and end up nearly breaking the {{Masquerade}} when they decide to use their powers; the fight escalates to the point that Tsukune has to unleash Inner Moka to get them to stop; Inner Moka outright calls them "stupid, immature brats" before [[SingleStrokeBattle K.O.'ing all three of them at once]].
66* Esmeraude (Emerald) in ''Anime/SailorMoon R''. She was so in love with Diamond that she hastily accepted Wiseman's tiara to become more powerful than Sailor Moon and thus winning Diamond's heart. Unfortunately, her plan falls apart when the tiara transforms her into a dragon rather than a Queen. The senshi (with the help of Tuxedo Mask) defeat the dragon and Esmeraude is momentarily restored to her human form -- only to fall into a dark abyss. She whispers Diamond's name as she vanishes. To Esmeraude's credit, the rest of her peers including Diamond also made the colossal mistake of trusting Wiseman.
67* This is pretty much the entire plot of ''Manga/SchoolRumble''. And neither Kenji nor Tenma was particularly bright to start with, leading the series down some truly bizarre roads.
68* From the strange and supernatural manga, ''Manga/SexPistols'', one part-time protagonist Seth decides, after his boyfriend tries to break up with him, to knock out said boyfriend, kidnap him, take him ''half-way across the world'' into a ''war zone'' in ''Saudi Arabia'', lock him up, and then forget to tell him that the reason ''why'' he's locking him up is that as soon as he entered the country an entire faction of Seth's family has been trying to '''''kill him!''''' [[SarcasmMode Nice one, Seth]]. And no, he wasn't aiming for an IfICantHaveYou ideology either. Probably.
69* Miyagi, Sakuragi, Aouta, and Haruko in ''Manga/SlamDunk''. The mention and/or sight of their crushes can make them reach varying stages of ditziness, no matter where they are. Of course, according to fangirls, [[DoubleStandard in the boy's cases it's sweet and funny, and in Haruko's case is a horrible sin]].
70* ''Manga/SPYxFamily'': Played both ways between Loid and Yor, both of which are all too willing to overlook the other's obvious signs that they're not normal people, and they continue to do so as their MarriageOfConvenience starts becoming [[RomanticFakeRealTurn more real than they anticipated]]. In the case of the latter, it can be excused by the fact that she's a SuperGullible CloudCuckoolander with NoSocialSkills, but the former is a master spy, with enough HyperAwareness to easily discern people's motives with a single look, yet somehow not even the fact that Yor [[NoiselessWalker walked past him without making a single noise]] and was able to tell that he was looking at her (despite having his back turned at her) made him suspect one bit.
71* ''Manga/WelcomeToDemonSchoolIrumaKun'' inverts this with the character Eiko. She has a deep crush on the titular Iruma. When she learns he isn't doing well academically (unbeknownst to most everyone he is human. While he can read and speak the demon language, he doesn't understand the academic concepts and never went to school before this), Eiko decides to help him and studies every possible subject hard to be a tutor for him. While she doesn't get a chance to help him, she moves from an average-ranked student to being in the Top Ten of her class as a result of her studies.
72* ''Anime/YuGiOhGX'': At one point, a Monster Card was introduced that literally made other monsters dumbstruck with love. She was (appropriately) called the "Maiden in Love" and any monster (male of course) that attacked her would then fall under the control of the player using the Maiden.
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75[[folder:Comic Books]]
76* ''ComicBook/AstroCity'': The brilliant (but ''very'' naive) GadgeteerGenius Mock Turtle is blinded by love for his childhood sweetheart Lucia, who he constantly imagines as an innocent girl to be sheltered from his roguish life as a super-villain. She, in turn, easily exploits his intellect and engineering talents for her own criminal gain.
77* ''ComicBook/CaptainAmerica:'' Before her HeelFaceTurn, Diamondback had a ''massive'' crush on the good captain, and during a brief team-up decided the best way to get his attention was to take the keys out of the ignition of the flying machine they were both in. While it was in the air. Had Cap not known every A.I.M. craft is equipped with parachutes and where they keep them (you learn after taking down a dozen or so), they would've died. Rachel is appropriately annoyed at herself for being so stupid.
78* [[BodyguardBabes Chakra]] in ''ComicBook/LesLegendaires'': [[OriginsEpisode Origines]] combines this with LoveMakesYouEvil. She has a BodyguardCrush on her hirer [[RoyalBrat Prince Halan]], but [[AllLoveIsUnrequited he only has eyes for]] Princess Jadina. So what does she do? Well, she helps BigBad [[SorcerousOverlord Darkhell]] to kidnap Jadina. Also, she contacts him through his [[ReptilesAreAbhorrent Lizard-looking]] [[TheDragon Dragon]]. And even worst, when he offers her a meeting ''at night, alone, far from the castle'', [[TooDumbToLive she accepts without taking any measure to ensure her security]]. So there isn't much surprise when, after she handed over the information, said Dragon lampshades this trope before having her RewardedAsATraitorDeserves.
79* The root of Hayseed Turnip's problems in the short story in ''ComicBook/MyLittlePonyMicroSeries'' Issue #3, as every time he faces Rarity he ends up doing or saying annoying things that upset her, much to his dismay.
80-->'''Hayseed Turnip Truck:''' She was a vision... The most perfect pony I'd ever seen... '''and I blew it.'''
81* ''ComicBook/ScottPilgrim'': Played with. Granted, [[IdiotHero the titular character is already kind of dumb]] but one can also see this trope in Knives Chau.
82* ''ComicBook/SonicTheHedgehogArchieComics'': Monkey Khan gave up the Power Ring he uses to make sure that Eggman or the Iron Queen can't control him due to his mostly cybernetic body. [[spoiler: He lets himself be controlled by Eggman just so Mecha Sally won't die, despite the fact that Mecha Sally has no remorse or inhibitions and will happily kill him despite the brief relationship Sally and Khan had.]]
83* ''ComicBook/{{Superman}}'':
84** In the ''ComicBook/{{Supergirl}}''/''ComicBook/{{Batgirl}}'' crossover ''ComicBook/ElseworldsFinestSupergirlAndBatgirl'', the Joker is infatuated and obsessed with Batgirl (despite her hating his guts). His intelligence drops down to negative digits when Batgirl is nearby, making really dumb statements and getting distracted during fights.
85** In ''ComicBook/KryptoniteNevermore'', a pilot tries to fight three armed bandits to impress Lois Lane. He has the chance to catch them off guard... and he shouts a war cry before pouncing on the ringleader.
86** ''ComicBook/DCRetroactiveSuperman'': In "The 70s" issue, Superman states that Lois Lane and Lana Lang are incredibly intelligent women who suddenly forget about their brains whenever he shows up.
87** "ComicBook/ThoseEmeraldEyesAreShining": By his own admission, Brainiac 5 falls for a painfully obvious trap because he cannot think clearly when ComicBook/{{Supergirl}}, his first and only love interest, is around.
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90[[folder:Comic Strips]]
91* ''ComicStrip/{{Garfield}}'': The protagonist cat warns Odie against developing a crush on a poodle in [[https://www.gocomics.com/garfield/2011/02/12 the February 12, 2011 strip]], saying he "already act[s] stupid enough".
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94[[folder:Fan Works]]
95* ''Fanfic/AdviceAndTrust'': Ritsuko is a very smart and resourceful scientist... but she has fallen for Gendo and has deluded into thinking Gendo does or will love her back... even though he ''always'' treats her like crap at best and a useful but disposable and ultimately replaceable pawn at worst, and he has provided her with plenty evidence that the only woman he will ever love is his deceased wife. Still, she repeatedly tells herself: "He will love me. He must! He needs me!"
96* ''Fanfic/ACrownOfStars'': Shinji and Asuka develop a rather "enthusiastic" relationship in later chapters; probably making up for years of BelligerentSexualTension. However, they get so wrapped up in their passion that they forget a few things -- like using birth control, or that Asuka's future self had been ''pregnant'' when they met. The inevitable finally occurs in chapter 67, and both agree that they should have seen this coming.
97-->'''Asuka:''' (Now what, Sohryu? I'm so fucking smart, now what do I do? I've been bragging to myself about beating fear and deciding my own fate for weeks now. I think fate just punched back.)
98* ''Fanfic/RosarioVampireBrightestDarkness'': In Act II, Tsukune's [[SuperpoweredEvilSide ghoul form]] [[ExploitedTrope exploits this trope]] upon realizing [[spoiler:Kokoa's]] newfound feelings for Tsukune, [[HydePlaysJekyll secretly takes over Tsukune's body]], falsely declares his love for her, and ultimately tricks her into giving him a blood transfusion while using her newfound [[SuperMode overcharge]], successfully giving it enough power to become a full-fledged ghoul and [[SplitPersonalityTakeover hijack Tsukune's body completely]]; just as the ghoul was expecting, [[spoiler: Kokoa]] is too blinded by her feelings for Tsukune to realize she's just an UnwittingPawn until it's too late. By the very first chapter of Act III, when she realizes her mistake, she's so devastated that she nearly [[DrivenToSuicide kills herself]], and after Tsukune gets a [[RestrainingBolt Holy Lock]] to suppress the ghoul, declares herself Tsukune's servant in penance.
99* In ''Fanfic/AsukaAndShinjisInfinitePlaylist'', Hikari is a reasonably intelligent young girl, but her brain cells tend to turn off when she is around a jock.
100-->Shinji couldn't help but smile at Hikari, knowing where this was likely heading. He watched as every brain cell immediately disappeared from his best friend, turning her into nothing but a pile of hormones.
101* In ''Fanfic/ThousandShinji'', Shinji and Asuka were so infatuated with each other that Shinji didn't notice his father was scheming against him.
102-->'''Rei:''' During that time, when everyone was distracted, your father had your apartment laced with monitoring equipment. When you got back, instead of sweeping for bugs like you usually do, you and Asuka had celebratory sex.\
103'''Shinji:''' Fuck. Fuck! Fuck!\
104'''Rei:''' That was your problem.
105* ''Fanfic/{{Fade}}'': [[spoiler:Light is so blinded by his love for L that he keeps going along with L's schemes and InsaneTrollLogic justifications for acting like Kira, despite ''knowing'' what he's doing is wrong, partially motivated by the belief that he can "fix" L. He also refuses to see the signs that the relationship between them is unhealthy and potentially abusive]].
106* In ''WesternAnimation/DannyPhantom'' fanfic ''Fanfic/ResurrectedMemories'': [[spoiler: At one point Ember is so lovestruck she thinks she can hide her true identity from Danny indefinitely even when Kitty points out how difficult that would be especially if the two ever have kids, sure enough it doesn't take long for her to let her guard down enough that she unknowingly changes into her ghost form while kissing Danny]].
107* A platonic example in the ''Temeraire'' fanfic ''Fanfic/BlackWingsBlackSails'', with Laurence and Temeraire. Whenever Temeraire becomes involved in his plans or is even nearby, most of Laurence's plans fall apart as a result of his strong affection for his former dragon -- he can't bear to even consider allowing Temeraire to come to harm. When he tries to capture the ''Allegiance'', he tries to run to Temeraire and gets clubbed in the head and imprisoned in the brig for his troubles, and he waits way too long to attack Capetown because he wants the ''Allegiance'' to leave with Temeraire aboard so Temeraire doesn't get dragged into the fighting, which disgraces Laurence with the Tswana and gets the ''Allegiance'' captured anyways.
108* Downplayed in ''Fanfic/SonOfTheSannin''. After she ends up in the infirmary during the Chunin exams finals, Hinata laments that she can't see Naruto's final match. Her mother Hikari reminds her that [[ForgotAboutHisPowers she can use her Byakugan to do that]], and comments that "[[LampshadeHanging being lovesick certainly messes with one's head]]".
109* ''Fanfic/WhatItTakes'': Oliver's affection for Felicity lets her fool him into believing that there was no way to make any contact with anyone Starling City, as Bali apparently has no wi-fi and the only device they could have was her work computer. He even let her keep their phones. [[spoiler:This allows her to keep him in the dark over what's happening for over half the story until people are sent to seek them out. Understandably, whatever affection Oliver has for Felicity dies after he learns the truth, and when explaining the situation to others he lampshades how much of an idiot he was being]].
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112[[folder:Films -- Animation]]
113* ''WesternAnimation/{{Frozen|2013}}'' plays with this trope. Anna can be quite clever at times, but she feels LoveAtFirstSight for Hans and agrees to marry him even though she had [[FourthDateMarriage just met him]]. [[spoiler:Too bad that Anna couldn't see that Hans [[EvilAllAlong couldn't be trusted.]]]] {{Subverted|Trope}} and platonic example in regards to her sister Elsa; while Anna was perceptive enough to realize, despite the suspicions of the townspeople, that her long-distant and secretive sister had not frozen the kingdom purposely, the film emphasizes the low likelihood of her faith being correct. [[spoiler:While Hans is revealed to be untrustworthy, Anna's undying love for and faith in Elsa is vindicated when it turns out Elsa really is NotEvilJustMisunderstood.]]
114* PlayedForDrama in ''WesternAnimation/KungFuPanda1'': Shifu's love for his adoptive son, Tai Lung, blinded him to both Lung's [[StartOfDarkness growing personal issues]] and the possibility that Lung wasn't cut out for being the Dragon Warrior. He filled Tai Lung's head with dreams and put him through decades of brutal training... then had no answers when Oogway frankly stated that Tai Lung was not the Dragon Warrior. [[RoaringRampageOfRevenge Tai Lung's response to that]] was disastrous.
115-->'''Shifu''' I have always been proud of you... From the very first moment, I've been proud of you. And it was my pride that blinded me. I loved you too much to see what you were becoming. What... [[CreateYourOwnVillain I was turning you into]]. I'm... I'm sorry.
116* Sherman in ''WesternAnimation/MrPeabodyAndSherman'': Mr. Peabody is quite surprised that Sherman eagerly tried to save Penny from marrying King Tut, especially when she wouldn't even give him the time of day. However, when trapped inside a pyramid, a bashful Sherman wants to give up, and Peabody's questions [[DiggingYourselfDeeper lead him to act very goofy.]]
117-->'''Sherman:''' Give me a break! [[SuspiciouslySpecificDenial It's not like I want to hold her hand, or go to the park... or watch her while she's brushing her hair...]] \
118Or anything!
119* Shang in ''WesternAnimation/{{Mulan}}'' is a downplayed form of this trope. He is a competent and professional soldier, not even letting his father's death [[TheStoic distract him from the task at hand.]] But when he tries to thank Mulan after saving him from Shan Yu and when he later visits Mulan's house, he stammers and generally has no idea how to act around Mulan now that he knows she's a girl.
120--> '''Shang:''' [[CannotTalkToWomen You... you fight good.]]
121* The titular character in ''Animation/RoadsideRomeo''. His love interest tells him that if he truly loves her, he'll have to sing on stage with her at a club. When he gets there, his friends desperately tell him not to because he'll make the BigBad furious [[GreenEyedMonster and bring out his jealousy]]. Romeo has to decide to walk away from the dog and find someone else or risk his life for someone he's only met twice and has only known for about three minutes. [[TooDumbToLive He goes with the latter.]]
122* In ''WesternAnimation/TheSecretLifeOfPets'', Gidget the lovesick Pomeranian does very crazy and impulsive things to rescue Max, including jumping out of her apartment room on a high floor, assaulting an alley cat after just meeting him, confronting an evil bunny and telling him about her and her team's relationship with Max, and, if not the most wanted crazy thing, singlehandedly overpowering a group of animals that greatly outnumber her.
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125[[folder:Films -- Live-Action]]
126* Taken to Universe ending extremes in MCU's ''Film/AvengersInfinityWar'' [[spoiler:as the normally happy-go-lucky Peter Quill a.k.a. Star-Lord ruins the one chance the heroes had of defeating BigBad Thanos by lashing out over the murder of his girlfriend Gamora... at the [[TragicMistake worst possible]] time]].
127* ''Film/{{AWOL}}'': Joey foolishly goes AWOL and runs off with Rayna (plus Rayna's kids) in spite of her judgment being against it. [[spoiler:Then after they get turned back at the Canadian border as a result of not having passports, Joey gets dumped by Rayna who goes back with her husband anyway.]]
128* In ''Film/BatmanAndRobin'', Robin starts with just a crush on ComicBook/PoisonIvy, but her continued seductions of him, combined with her pheromones, soon make him fall blindingly in love with her and make numerous dumb decisions. Even after finding out Ivy is a villain he hardly puts up any resistance against her and completely believes her when she promises to help him and "turn over a new leaf" so they can be together. When Batman explains why Ivy has been trying to kiss them, Robin thinks he is just jealous that she loves him instead, and attacks Batman to defend her. He later sees a "robin-signal" in the sky and knows it is from Ivy since she mentioned it while flirting with him, but just takes it as a sign of her love for him, not even questioning where or how she got it. [[spoiler:This is ultimately subverted when he meets with Ivy in her lair. He pretends to still be in love with her and convinces her to [[JustBetweenYouAndMe share her plan with him as a sign of trust]] before sharing a kiss. Then he reveals he protected himself with [[TestKiss rubber lips]], negating her poison and [[SecretTestOfCharacter proving her love to him was a lie]]. However, he does this while sitting right next to her, and she angrily shoves him into her lily pond to drown him for his treachery, officially "breaking up with him."]]
129* In ''Film/{{Casino}}'', Sam "Ace" Rothstein is known as a very intelligent and calculating man who is an [[TheAce ace]] at gambling, and is known to never lose. It's this reason he is put in charge of a big casino in Vegas for the Mob. Everything is fine at first, until Sam falls in love with a woman hustler named Ginger, [[{{ForeShadowing}} while he is watching her steal]] from a high-stakes gambler. Despite this, and many bad signs and warnings from others, Sam marries her and quickly regrets it. He even gives her the only key to his saved fortune, which even makes the bank manager question it. It proves to be one of the reasons for the Casino's downfall. He only survives getting killed, because the Mob still feels they can use him to make money. Lampshades during the film:
130-->'''Sam "Ace" Rothstein:''' Before I married Ginger, I heard all the stories, but I didn't give a shit. "I'm Sam Rothstein", I said. [[TemptingFate "I can change her."]]
131* Eddie in ''Film/TheColorOfMoney'' has this with his girlfriend, Carmen. He sees her as a PuritySue, blinding himself to her {{Street Smart}}s and {{delinquent|s}} past. She's even wearing a necklace she stole from his mother, and he thinks it's just a coincidence.
132* Evie from ''Film/{{Descendants}}'' is an intelligent young lady; however, her mother taught her that all that mattered in life was being beautiful and getting married to a prince, so she tends to act like a BrainlessBeauty around guys she likes. More specifically, she was so in love with [[PrinceCharmless Chad]] that she didn't realize that he was only using her to do his homework for him.
133* ''Film/HellboyIITheGoldenArmy'': Oh, Abe Sapien. FriendOrIdolDecision, HostageForMacGuffin, The Villain's Sister and here you were making a fool of yourself for love.
134* ''Film/AKnightsTale'':
135** William fully understands ''this'' trope, as after offering to be Jocelyn's [[TheChampion Champion]] (a line she's heard ''way'' too often), she tells him that if he loves her, he'll lose. And so, at the beginning of the next tournament, after the flag for William's first joust is dropped, and his opponent spurs on, the four members of the FiveManBand cheering William on...
136--->'''Roland:''' What are you doing?\
137'''William:''' ''[sitting on his horse, going nowhere]'' ...Losing.\
138'''Wat:''' I don't understand.\
139'''William:''' ...Neither do I. ''[CRASH!]''
140** This leads to a subversion later on, when Jocelyn changes her mind mid-tournament and tells him to win the tournament he just spent the day losing in the most painful way.
141--->'''Geoff:''' There she is, your symbol of love. Your Venus!\
142'''William:''' [[PreAsskickingOneLiner And how I hate her.]]
143* ''Film/MeanGuns'': Hoss growing a heart and becoming overprotective of Barbie is what got him and Crow killed. Extra stupid bonus points for trying to [[TheDulcineaEffect protect a woman he only knew for a few hours tops]] and knew full well to be a killer.
144* In ''Film/StargateContinuum'', Baal uses TimeTravel to maneuver himself into dominance of the Goa'uld System Lords and is in position to conquer Earth with ease. He even brilliantly gains the loyalty of the Free Jaffa movement by dealing with them in complete honesty. His only failing was to let his feelings for Qetesh override his common sense, resulting in her betraying and murdering him.
145* Anakin Skywalker's love for Padmé Amidala and his fear of her dying is one of the main driving forces behind many of his actions in ''Film/RevengeOfTheSith''. The BigBad, Darth Sidius, took full advantage of this and manipulated Anakin into believing that only he, a Sith Lord with deep knowledge of the dark side of the Force, knew how to save Padmé from death—something the Jedi are not capable of. This manipulation came to a head when Anakin [[spoiler:sliced off Mace Windu's hands just as he was about to kill Darth Sidious,]] which resulted in [[LoveRuinsTheRealm the complete destruction of the Jedi Order, Anakin falling to the dark side of the Force, becoming Darth Vader, and Darth Sidius reforming the Republic into the Empire, with him essentially becoming the ruler of the galaxy.]]
146* ''Film/TragedyGirls'': Jordan Welch is a levelheaded, supportive guy... who, unfortunately, has a massive crush on [[SerialKiller Sadie]]. While he's able to sense that something is wrong with [=McKayla=], Sadie's best friend and partner in crime, he's completely blind to Sadie's true nature.
147* In ''Film/VisionQuest'', Louden's love for Carla slowly causes him to lose sight of his goals as a wrestler.
148* ''Film/{{Zombieland}}'': Columbus loves Wichita from the word go and insists on chasing her even though Wichita is a {{Jerkass}} con artist who stole his transport and weapon ''twice'', on the first occasion leaving him for dead and on the second kidnapping him. This continues after she steals his vehicle for a ''third'' time [[spoiler:to go to Pacific Playland with Little Rock, though on this occasion choosing to go after her ends up saving her life and it finally pays off with her [[RescueRomance returning his feelings]]]].
149[[/folder]]
150
151[[folder:Literature]]
152* ''Literature/AesopsFables'': In "The Lion in Love", a lion falls in love with a young woman. Her father says that he will only let the lion marry her if he allows him to pull his teeth and cut his nails because she is frightened of them. The lion loves the woman so much that he consents, but after it has been done, the father is no longer afraid of him and drives him away with his club.
153* Invoked in ''Literature/TheBelgariad'' when Ce'Nedra asks Garion what's wrong with his friend Lelldorin. Lelldorin comes from the Arendish culture, known for HonorBeforeReason, and Ce'Nedra comments that he's "so Arendish, he's practically incapacitated." Garion replies that Lelldorin is in love, and being in love makes some people's brains seem to leak out of their heads. [[{{Tsundere}} Ce'Nedra]], who just recently realized ''she's'' in love with Garion, is ''NOT'' pleased.
154* ''Literature/TheBerenstainBearsBigChapterBooks'': In ''The Berenstain Bears and the Bermuda Triangle'', Brother's crush on Bermuda [=McBear=] blinds him to her faults, unaware that she's just using him to get into the school supply room, and from there to the school's computer room so she can steal the number of the in-school modem that's part of the school's teachers-only computer network.
155* In ''Literature/BloodPromise'', Viktoria Belikova falls for a casanova and is ready to be impregnated at age 17. When Rose rescues her, she accuses her of leading the casanova on and not understanding love.
156* In the ''Literature/BooksOfPellinor'', Hem repeatedly risks both his life and his mission to rescue Zelika because he loves her, even though he has no way of knowing whether she is even alive. As it turns out, [[spoiler:she was killed soon after her capture]].
157* In ''Literature/ABrothersPrice'', the oldest present sister Corelle has a crush on the neighbour boy and decided to pay him a visit -- despite having been left in charge of the farm and her younger siblings. In the dangerous world where the story is set, this is a very dumb thing to do. The backstory also has a princess who is so in love with her pretty husband, that she excuses even his abusing her younger sister when he claims that the teenager "provoked" him.
158* In ''Literature/CityOfLostSouls'', [[spoiler:Jace has been {{Brainwashed}} by Sebastian, who is about to bring his EvilPlan to fruition. Jace manages to escape Sebastian's control temporarily and wants to flee with the MacGuffin back to the Shadowhunters in order to prevent TheEndOfTheWorldAsWeKnowIt. However, afraid that the Shadowhunters will kill Jace to stop Sebastian, Clary keeps him from getting away, assuring that he ends up back under Sebastian's mind control and ultimately allowing Sebastian to advance his plan to the next stage]].
159* ''Literature/CodexAlera'': PlayedForLaughs in ''Furies of Calderon''; the young shepherd's apprentice Tavi sheepishly admits to the Cursor Amara that he didn't bring in the sheep like he was supposed to and instead got some flowers for the steadholder girl Beritte because "She kissed me, and my brains melted and dribbled out of my ears."
160* Jonathan Harker from ''Literature/{{Dracula}}'' at one point seriously considers letting himself get turned into a vampire just so he can join his beloved wife Mina in vampirism. Fortunately, this never comes to happen.
161* In the ''Literature/{{Dragonlance}}'' novels, Laurana's love for Tanis Half-Elven causes her to agree to personally conduct a prisoner exchange with her ArchEnemy Kitiara. [[spoiler: The proposed exchange is a trap, and when Laurana arrives she is betrayed and [[BadassInDistress kidnapped]].]]
162* ''Literature/ForestOfAThousandLanterns'': Wei ignores Xifeng's (entirely justified) concerns about her morality mostly because he loves her.
163* This is parodied in ''Plague'' in the ''Literature/{{Gone}}'' series.
164-->'''Virtue:''' I'm going to refuse to do puberty. It makes you stupid.
165* This could be said for Daisy from ''Literature/TheGreatGatsby'', [[AlternativeCharacterInterpretation though she could simply be]] [[BrainlessBeauty like that]] [[UpperClassTwit all the time.]] Even more so for Gatsby himself.
166* OlderThanSteam, thanks to François Villon's ''The Great Testament'':
167-->Foolish love makes beasts of men:\
168It once caused Solomon to worship idols,\
169And Samson to lose his eyes.\
170That man is lucky who has nothing.
171* ''Literature/HarryPotter'':
172** Alluded to in ''Literature/HarryPotterAndTheHalfBloodPrince'', where said prince's notes in an old Potions textbook have allowed Harry to become top of the class. When he has to hide the book to protect his secret from Snape, his performance in class predictably drops; Potions master Professor Slughorn, however, sees nothing odd in this, as it starts shortly after Harry begins dating Ginny Weasley.
173** While he was a firm believer in ThePowerOfLove, Albus Dumbledore was not blind to its downsides, having experienced ''that'' firsthand. [[spoiler:The first and only person Dumbledore ever loved was the future Dark Lord Gellert Grindelwald. His love for Grindelwald was so strong that it blinded him to the man's many faults, which eventually led to the death of his sister and the estrangement between Dumbledore and his brother. Unsurprisingly, Dumbledore swore off falling in love ever again for exactly this reason.]]
174* OlderThanPrint, actually -- ''[[Literature/PoeticEdda Havamal]]'', stanza 94:
175--> Wise men oft | into witless fools\
176Are made by mighty love.
177* In ''Literature/HeartOfSteel'', falling in love with Julia makes Alistair neglect things like sleep and his plans for world conquest in his pursuit of her. Unfortunately, sleep deprivation leaves him mentally weakened, and vulnerable for the moment when Jim finally wrestles free of his controls.
178* Pretty much the plot of the seventh book in the ''Literature/HIVESeries''. Otto thinks that the reason [[spoiler:Laura]] was acting strange around him was because [[spoiler: he confessed his love to her and it didn't go well,]] but it was actually because [[spoiler: she was being blackmailed by a member of the staff and her family was being held hostage]]. His lack of attention led to [[spoiler:the death, injury, or capture of 36 Alphas, and his own expulsion from the HIVE]].
179* In the ''Literature/IRichardPlantagenetSeries'' this is the case for UsefulNotes/EdwardIV. He fully admits this to [[UsefulNotes/RichardIII Richard]] and says he just can't help himself when it comes to his wife, Elizabeth Woodville. What he doesn't see coming is [[spoiler: Elizabeth actually murdering him]].
180* ''Literature/KaneSeries'': In ''Dark Crusade'' former general Jarvo is so blinded by his love for Esketra that he does not see her for an OpportunisticBastard she is (even though he knows very well that she's been unfaithful to him) and fails to notice that she's quite happy in her role as Orted's lover -- and not a SexSlave waiting for him to save her -- and as a result brings doom onto people who have saved his life.
181* A variation in ''Literature/{{Misery}}'', as the love in question is a fan's love for a fictional character. Annie is insane and lets her love of the fictional Victorian airhead Misery Chastain cloud her judgement, and Paul is eventually able to exploit this to kill her.
182* ''Literature/SamsonAndDelilah'': Delilah succeeded in getting Samson to tell her the secret of his strength after she'd already tried to exploit each version of the "secret" he'd told her ''three times'' before in order to hand him over to his enemies. It's also something of a testament to how charming she could be that the Philistines to whom she'd related these "secrets" the previous three times came back for one more try after her false information had previously gotten them thrashed -- and they brought their money. Laugh as we might at his folly, the story's not so implausible to anyone who's seen the gullibility of a man thinking with the wrong head.
183* In Creator/GeneStrattonPorter's ''Literature/TheSongOfTheCardinal'', the young cardinal believes this even while envying the already mated birds.
184-->''As for the doves that were already brooding on the line fence beneath the maples, the Cardinal was torn between two opinions.\
185He was alone, he was love-sick, and he was holding the finest building location beside the shining river for his mate, and her slowness in coming made their devotion difficult to endure when he coveted a true love; but it seemed to the Cardinal that he never could so forget himself as to emulate the example of that dove lover. The dove had no dignity; he was so effusive he was a nuisance. He kept his dignified Quaker mate stuffed to discomfort; he clung to the side of the nest trying to help brood until he almost crowded her from the eggs. He pestered her with caresses and cooed over his love-song until every chipmunk on the line fence was familiar with his story. The Cardinal's temper was worn to such a fine edge that he darted at the dove one day and pulled a big tuft of feathers from his back. When he had returned to the sumac, he was compelled to admit that his anger lay quite as much in that he had no one to love as because the dove was disgustingly devoted.''
186* He was never a main character, but [[http://starwars.wikia.com/wiki/Gregar_Typho Captain Typho]], Padmé's eyepatched guard in the second two prequels, fell in [[AllLoveIsUnrequited unrequited, unnoticed love]] with her, as revealed in the Franchise/StarWarsExpandedUniverse. After her death and funeral, he observed that she had died of being strangled, but there was no evidence of this on her skin, which meant the Force. Remembering that Anakin Skywalker had been scheduled as guarding her, he decided to track him down and hear the explanation, then either kill him or not depending on the answer. Keep in mind that this is after Order 66. He knows it's a long shot, and he knows that if Padmé had known he was in love she would have urged him to let go and live his life, but he feels like he has to do this. Later, he decides that Skywalker must have been killed, and Padmé soon after, by a Sith, and he must find and kill this Sith -- [[{{Irony}} Darth Vader]], specifically. The narration lampshades this once.
187-->After all, no one in their right mind deliberately sought to make acquaintance of a Sith. But Captain Typho was not in his right mind. He was in love.
188:: Notably, while love gave him a goal both very difficult and quite suicidal, it didn't make him stupid. He was able to best the bounty hunter and Jedi killer Aurra Sing, stealing one of her lightsabers and clipping her biocomputer, though he did not kill her. He was cautious and planned, and was able to remember enough about the customs of different species that he could get plenty of information out of them. And he was even smart enough to acquire an obscure PowerNullifier for Force-users, knowing full well that a {{muggle|s}} can't beat a Sith Lord in a straight fight.
189* Lazarus Long, in ''Literature/TimeEnoughForLove'', has [[TimeTravel traveled back in time]] over two thousand years to visit his original family in 1917. What he doesn't count on is that, in doing so, he [[ParentalIncest falls in love with his mother]]. This causes him to enlist in UsefulNotes/WorldWarI to win her approval, despite having no personal stake in the war, knowing the outcome, ''and'' not knowing the future from his own personal point of view. [[spoiler:He nearly dies as a result.]]
190* In the story "The Warlock's Hairy Heart", seen in ''Literature/TheTalesOfBeedleTheBard'', a fairy tale book for [[Literature/HarryPotter wizards and witches]], the warlock believes that Love Makes You Dumb, so he performs dark magic to prevent this from happening to himself. It didn't end well.
191[[/folder]]
192
193[[folder:Live-Action TV]]
194* ''Series/BecomingElizabeth'': Many allusions are made to Queen Catherine Parr's intelligence and accomplishments, such as being the first English woman to publish a book under her own name, but in the series, Catherine's love and passion for Thomas Seymour make her foolish and arrogant.
195* Discussed and inverted in ''Series/BrooklynNineNine''. Jake's CharacterDevelopment really has more to do with [[ParentalSubstitute his relationship with Holt]] than his relationship with Amy, but his personal growth was definitely helped along by her support and influence. (And in his own way, he helped her just as much.)
196-->'''Jake:''' Look, you are going to ace this test.\
197'''Amy:''' You only think that 'cause you love me, and love has made you dumb.\
198'''Jake:''' I disagree. If anything, love has made me smarter. Remember last week when I boiled that egg?\
199'''Amy:''' That was big. I was really proud of you.
200* ''Series/BuffyTheVampireSlayer'':
201** While mostly averted on the show, the Buffy/Angel romance was definitely this at times, particularly from Buffy's standpoint. While it's slightly justified by her being young, she still crossed this line. How about choosing to get back together with Angel despite knowing it's a bad idea (he'll lose his soul and turn evil if she sleeps with him) and him saying ''to her face'' that he '''''wants her so badly he's willing to lose his soul again just so he can sleep with her'''''. When your ex tells you that, you don't get back together with them. It's a marked indicator of her CharacterDevelopment when Angel returns again just before the series finale, and she admits that she doesn't know what she wants and still needs to finish figuring herself out, before sending him off to return to [[{{Series/Angel}} Los Angeles]] while she metaphorically and literally deals with her own problems.
202** Discussed in "[[Recap/BuffyTheVampireSlayerS7E5Selfless Selfless]]" when Xander objects to Buffy planning to kill Anya, despite the fact that Anya brutally murdered several humans; Buffy herself believes that Xander's lingering feelings for Anya are clouding his judgement:
203--->'''Xander:''' Buffy, I still love her.\
204'''Buffy:''' I know. And that's why you can't see this for what it really is.
205* Mentioned in ''Series/{{Castle|2009}}'', shortly after Alexis and Pi break up:
206-->'''Alexis:''' All those things my dad said when I was moving out, about me making a mistake moving in with my boyfriend, he was right. I can see it so clearly now. Why didn't I then?\
207'''Beckett:''' You were in the love haze.\
208'''Alexis:''' The love haze?\
209'''Beckett:''' It's like a drug. It makes intelligent people do... stupid things. And then it clears and you look around and you wonder "What was I thinking?"
210* From ''Series/TheCosbyShow'', the vast major of incidents involving Vanessa Huxtable getting in trouble usually start as a result of her boy craziness.
211* ''Series/Danger5:'' In "Back to the Führer", Tucker sees the chance to [[spoiler: meet the old Claire, who hasn't been killed yet]]. Pierre warns him that his actions will cause serious disruptions in the fabric of time, but Tucker doesn't care.
212-->'''Tucker:''' I can't hear you Pierre, I'm in love.
213* Dawson from ''Series/DawsonsCreek'' was an example of this from time to time, but averted it a lot early on. While watching a ''film noir'' with Pacey, Dawson couldn't figure out why the detective was so oblivious to the fact that the girl setting him up.
214* ''Series/DoctorWho'': The Doctor repeatedly invokes the rules of time travel, No. 1 being you can't go back and change fixed points in time or otherwise alter major historical events. But in the Series 9 finale "Hell Bent", he decides to break all the laws of time in order to prevent Clara Oswald from being KilledOffForReal [[spoiler: ''after that already happened'']], an act that threatens to destroy the space-time continuum.
215** In Series 10's "The Pyramid at the End of the World", Bill Potts is so desperate to save the blind Doctor from dying in a lab explosion (he cannot unlock the door unless he can see the numbers on the lock) that she [[spoiler: consents to humanity being conquered by the Monks]] against his wishes. It should be noted that it is not romantic love she feels for him, as she is a lesbian; she loves him as a grandfather figure and an extremely close friend. (She also believes it will allow him to be able to fix the consequences of her actions.)
216* Played with in ''Series/{{Frasier}}'', where Frasier is constantly doing face-palmingly stupid things whenever he gets into a relationship with a woman and directly ignoring his very own psychiatric advice... and ''he knows it'', and can't help it, and constantly hopes his romantic plans won't blow up in his face this time, no matter how many times his little brother reminds him how badly he suffers from this trope, with his stupidity probably reaching a zenith in "Don Juan in Hell". This is just one aspect of pretty much the very core of Frasier's character -- being brilliant at giving other people advice, and terrible at following it himself.
217* ''Series/{{Friends}}'': Monica and Chandler when they first develop feelings for each other. Also Rachel when she has a crush on Joshua in Season 4.
218** After [[WrongNameOutburst saying the wrong name]] at their wedding, Ross still hopes that Emily will show up at the airport for their honeymoon. As he waits, he asks Rachel if he's being an idiot.
219--->'''Rachel:''' You're not an idiot. You're a guy very much in love.\
220'''Ross:''' [[SelfDeprecation Same difference.]]
221* ''Series/GameOfThrones'':
222** [[spoiler: King Robb Stark]] falls in love with Talisa Maegyr and marries her, despite having already promised to marry Lord Walder Frey's daughter. His mother warns him what a stupid political move this is but he marries her anyway, which doesn't only make him lose an important ally, [[spoiler:but also [[DisproportionateRetribution gets him, his pregnant wife, his mother, and most of the Northern army killed]] when the Freys murder them [[NastyParty during the reconciliation wedding in Season 3, where he doesn't even realize how dumb it is to parade his new wife in front of his supposed-to-be-wife, not to mention supposed-to-be-father-in-law. In the books, Catelyn forbade him to bring Jeyne to the Twins for this very reason]]]]. Lord Karstark remarks that Robb lost the ongoing war the day he married Talisa. This is in contrast to the books, where he marries Jeyne Westerling out of a sense of honor (and hopes the Freys will understand). The context makes Robb seem more brash and impulsive than his book counterpart, who already got some criticism; no less than ''Tyrion Lannister'' was heard to observe, "Better to leave her with a bastard in her belly," after hearing of his folly with Jeyne.
223** Catelyn frees the Kingslayer behind her son's back in an attempt to get her daughters back.
224** Sansa is convinced that Joffrey is a great guy until he chops off Ned's head.
225** Jaime Lannister has some shades of this in his relationship with Cersei. He's not blind to her faults or her evil actions, but he genuinely believes that she is acting for the greater good of their family and that she ultimately wants to build a better world. He [[spoiler:eventually realises what a terrible person she is when she decides to let Daenerys and Jon be slaughtered by the White Walkers after promising to help]].
226** Rhaegar Targaryen. It apparently did not occur to him that running off with another guy's fiancée and not explaining things clearly might possibly have severe repercussions for him, his family, his in-laws, and the entire realm. Also, Lyanna Stark, never occurred to her either to do these things.
227* On ''Series/GilmoreGirls,'' Lane is so smitten with a boy that she pets his hair when he's turned around, then runs away, embarrassed. She winds up turning to Lorelai for advice, who advises her that when it comes to love, "it pretty much all comes out in moron."
228* Suzy Pepper of ''Series/{{Glee}}'' had a crush on her teacher, called him at 3 a.m., gave him a tie with red peppers so when he wears it he can think of her. Teacher rejected her, she ate world's HOTTEST PEPPER, burned holes in her esophagus, and got put in a medically-induced coma for 3 days. To add insult to injury, the teacher then added that girls are so fragile.
229* On ''Series/{{Haven}}'' this is Nathan's biggest character flaw. He will AlwaysSaveTheGirl, even when Audrey asks him not to, and it circumvents any sort of common sense that he ostensibly should have as a detective. This trope leads him to mess up the supernatural timeline of the show, kickstarting the apocalyptic events of seasons 4 and 5. Season 5's "Spotlight" is basically one long LampshadeHanging of this.
230* Wilson references this in Season 4 of ''Series/{{House}}'' after House thinks that his attraction to a female doctor is interfering with his diagnostic skills.
231--> "Boy meets girl, boy gets stupid, boy and girl live stupidly ever after."
232** There also was an indirect but very literal version in the episode where the patient of the week was a former prodigy and teen genius, now working as a [=FedEx=] deliveryman. Turns out that he'd fallen in love with a girl who had maybe 1/3 of his IQ, and started habitually using a drug made from a combination of prescription-strength cough syrup and strong alcohol (known as 'Astro-Tripping' or 'Blue Drank') to slow his mind down to the point where he could relate to her. Of course, using something like that on a daily basis for years can take its toll...
233* Kate from ''Series/{{Lost}}'' started out as one of the main characters in the ensemble, a fairly solid example of a TroubledButCute girl. However, as the series entered its second season, she became increasingly obsessed with Jack. Her attempts to rescue/ingratiate herself with/impress or otherwise have contact with him have led to an ever-growing list of problems that are completely her making -- she seems to think she's back on a junior high playground (albeit one where she gets to have sex with Sawyer, the JerkWithAHeartOfGold, before going back to see what Jack is up to), not trapped on an island with a group of psychotics and a bunch of EpilepticTrees.
234** This is taken to new lows in the Season 5 finale, when [[spoiler: a group of Losties ends up in the past thanks to some pesky time-travel, and they have to decide whether or not to detonate a nuclear bomb, whose explosion might change the future and prevent everything they've gone through to happen. Jack finally admits that his main reason to do it is that he lost Kate's love. Juliet's reason is that she noticed Sawyer, her current love interest, ''looking at Kate in a certain way''. Kate and Sawyer go along with the plan]]. Sadly, Miles and Hurley reluctantly agree instead of pumping these [[EmoTeen emo douchebags]] full of hot lead.
235* ''Series/TheNightManager'': A major part of why Jonathan gets as far as he does in his attempt to infiltrate Roper's inner circle and take him down is because Roper is so grateful that Jonathan saved his son's life (from a staged kidnapping that he set up specifically to get in Roper's good graces) that it overrules his common sense and causes him to turn a blind eye towards anything that Jonathan does, including ignoring his lackey's suspicions of him.
236* ''Series/PeakyBlinders'', though he's otherwise TheChessmaster, Tommy has a bit of a blind spot when it comes to [[TheMole Grace]], whom he trusts with some of his secrets despite the fact that early on he catches her out on lying to him several times, such as what pub she claims she used to work at back in Ireland or pretending to be a Catholic when she isn't. To be fair, he doesn't tell her everything and some of the fault lies with his brother Arthur, but you'd think Tommy wouldn't be quite so willing to share information with a woman he already knows to be dishonest and this bites him when [[spoiler: Grace figures out where the guns are hidden and sells him out to Campbell]].
237* ''Series/PushingDaisies'' has this as a main element, in a subtle way... until "Water and Power", when the anvil is dropped on Emerson Cod's foot. The Narrator even points this out.
238* Lister references this in ''Series/RedDwarf'':
239-->It's really debilitating, being nuts about someone. You lose twenty I.Q. points every time you talk to them.
240* Nobody, least of all the writer responsible, has any idea why Marian, in the 2006 BBC version of ''Series/RobinHood'', ran up to Guy of Gisbourne, an unhinged man who was obsessed with her, and began yelling: "I love Robin Hood! I'm going to marry Robin Hood!" He responded by [[spoiler:running her through with a whopping great sword]].
241* ''Series/{{Scandal}}'': [[spoiler: Poor Huck. He wanted to believe that his girlfriend Becky was the best thing in the world. But he discovers that she not only shot the President but set him to be the fall guy. She actually wanted him to come with her, and he was torn over what to do. The good news is that he did the right thing, which was to try to take her down. The bad news is that she caught wind of his attempt, and not only got away but even murdered the entire family that he keeps an eye on]]!
242* ''Series/{{Sherlock}}'' states this outright in "[[Recap/SherlockS02E01AScandalInBelgravia A Scandal in Belgravia]]". It is directed at [[spoiler: Irene Adler]] who has just finished [[BullyingADragon tearing into him about his apparent asexuality]], something repeated throughout the episode.
243-->I've always assumed that love is a dangerous disadvantage. Thank you for the final proof.
244* ''Series/{{Smallville}}'':
245** This is a continually growing problem with Clark to the point that, in the first half of Season 8, he was finally starting to act a little bit like Superman until Lana returned at which point he lost about 7 years of character development.
246** A smaller example: Chloe Sullivan, gets dumb when she is romantically involved with [[spoiler:Ian, Jimmy, and Davis]]. Also makes her into a HorribleJudgeOfCharacter for the first and third occasions.
247* ''Series/StarTrekDeepSpaceNine'':
248** Odo becomes smitten with [[TheVamp the Female Changeling]] during the occupation of Deep Space Nine in "Behind the Lines" and "Favor the Bold." He becomes so absorbed in [[GRatedSex linking]] [[DoesThisRemindYouOfAnything with her]] that he neglects his duties. He became involved with her ''despite'' full knowledge of the Dominion's tyranny and the Female Changeling's [[TheTrickster prior antics]]. Fortunately, he snaps out of it upon realizing what the Female Changeling and the Dominion have in mind for the Alpha Quadrant.
249** Rom's backstory contains an example of this. So smitten with Nog's mother was he that he didn't even skim the Ferengi marriage contract. Which ended with him getting cleaned out by his now ex-wife and left alone with Nog.
250* ''Series/{{Torchwood}}'':
251** In "[[Recap/TorchwoodS1E4Cyberwoman Cyberwoman]]", Ianto's love for his girlfriend leads him to hide her in the basement of a heavily armored base filled with alien tech. She's a half-converted evil cyborg woman. He then proceeds to date the guy who kills her.
252** In "[[Recap/TorchwoodS1E7GreeksBearingGifts Greeks Bearing Gifts]]", Tosh secretly bringing her secret alien girlfriend to work, despite her suspicious resemblance to a serial killer on the loose. And the questionable security movements made by Gwen and Jack for Rhys and John respectively.
253* Damon's love for Elena or Katherine in ''Series/TheVampireDiaries'' means he fits this trope as well as LoveRedeems, LoveMakesYouCrazy, and LoveMakesYouEvil, which he has also played with at some point during the show.
254** Klaus can fit too, as he has been manipulated by Caroline a couple of times after developing feelings for her.
255** And as of Season 5, Katherine, who [[spoiler: decided to stay in town instead of running away with Nadia after stealing Elena's body]], all because she wanted to woo Stefan.
256* ''Series/WhiteCollar'': [[ConMan Neal Caffrey]] is generally [[BadassBookworm pretty intelligent]]. He can always come up with a good plan, and can often get exactly what he wants out of a situation. But his love for Kate has resulted in him making some remarkably idiotic decisions -- walking right into a trap that ended with him going to jail and breaking ''out'' of jail only a few months away from the end of his sentence stand out as some of the most egregious examples.
257[[/folder]]
258
259[[folder:Manhua]]
260* In ''Manhua/GoddessCreationSystem'' Xiaxi caused the two Wang Pu brothers to fall in love with her by carefully crafting a specific persona designed to appeal to them both and then nudging events around to make herself look as good as possible. That's all well and good, but there are massive holes in her plans that the story actually does acknowledge, but it's implied that the brothers are so enthralled by that point that they never think to question how implausible everything was or how her behavior doesn't actually match her personality very well.
261[[/folder]]
262
263[[folder:Music]]
264* From Music/BlackFlag's AntiLoveSong [[TheCoverChangesTheMeaning rewrite]] of the Kingsmen's "Louie Louie":
265-->"This pain in my heart\
266 It just means I'm not very smart\
267 Who needs love when you've got a gun?\
268 Who needs love to have any fun?"
269* "Everybody Plays The Fool" by TheMainIngredient is all about this trope.
270* "[[https://www.youtube.com/watch?v=-pr-xzajQo0 Herp de Derp]]" by Music/TheGregoryBrothers is this combined with GibberishOfLove:
271-->Herp herp herp herp herp de derp\
272I'm not this awkward all the time\
273Only when love is on the line\
274Herp de derp de derp de derp de derp derp derpy
275* Music/TalkingHeads' "Uh-Oh, Love Comes to Town" (from ''Music/TalkingHeads77'') is all about love messing with your head and causing bad decisions.
276-->Jet pilot gone out of control, ship captain run aground\
277Stockbroker make a bad investment when love has come to town
278* Music/DanielAmos' "I Love You #19" (from ''Music/HorrendousDisc'') briefly touches on this.
279-->Now if I said it real pretty in a pretty rhyme\
280Does your mind get cloudy that's a dirty crime
281[[/folder]]
282
283[[folder:Mythology & Religion]]
284* ''Literature/TheAchilleid'': Achilles is adamant that he doesn't want to dress up as a woman, but as soon as he sees a pretty girl, he's left dumbfounded and easily manipulated by his mother into accepting getting DisguisedInDrag.
285[[/folder]]
286
287[[folder:Tabletop Games]]
288* In ''TabletopGame/{{Pathfinder}}'', divine spellcasters with the Lust domain gain ''Touch of Idiocy'' and ''Confusion'' to their domain spell lists, becoming able to inflict this trope on enemies.
289[[/folder]]
290
291[[folder:Theatre]]
292* The Red Knight in the chess based ballet ''Theatre/{{Checkmate}}'' falls hard for the Black Queen, to the point he throws a sword fight against her (that he's on the verge of winning) because he cannot bring himself to kill her. [[spoiler: She literally stabs him in the back.]]
293* In ''Theatre/TheGoodPersonOfSzechwan'', Shen Te is on the verge of sorting out her problems when she meets Yang Sun and falls in love, and common sense goes out the window. Even when she learns beyond any doubt that he doesn't love her and is just stringing her along for his own advantage, and even though their relationship keeps ruining things for her every time her life looks like it might be taking a turn for the better, she's so lovestruck she can't bring herself to give him up.
294* One common interpretation of Creator/WilliamShakespeare's ''Theatre/RomeoAndJuliet'' has this trope as its lifeblood. And in a similar vein, ''Theatre/AntonyAndCleopatra''.
295* In the vein of "jealousy makes you dumb" in ''Theatre/{{Tosca}}''. By all means, if the villain who's openly ogling you hints that your lover might be cheating, [[SarcasmMode it's bound to be true]]!
296[[/folder]]
297
298[[folder:Video Games]]
299* ''VideoGame/BaldursGate'' features Viconia, a NeutralEvil Drow Cleric on the run from her [[AlwaysChaoticEvil equally evil race]]. Then the PlayerCharacter saves her a few times, [[LoveRedeems worms his way into her dark heart]], and if he plays his cards right, he can change her alignment to TrueNeutral... which disqualifies her from using a powerful, [[PermanentlyMissableContent one-of-a-kind]] holy symbol dedicated to her (still evil) goddess.
300** The whole plot of the sequel is essentially caused by the elven queen Ellisime sparing a villain's life out of love, exiling him instead (and doing nothing about his High Mage powers). At the end of the game, she publicly admits her mistake, though.
301* In ''VideoGame/DarkSoulsII'' [[spoiler: King Vendrick's]] love for [[spoiler: [[BigBad Queen Nashandra]]]] causes him to make one foolish decision after another, from [[spoiler: waging war against the Giants to numerous failed attempts at curing the Undead Curse, distracting him enough for Nashandra to take the throne from under his nose]]. This trope pretty much sets the entire plot in motion. Even worse, after he figures everything out, he's STILL in love with her!
302* Later games in ''Franchise/TheElderScrolls'' series reveal this to have been the case for ''[[VideoGame/TheElderScrollsArena Arena]]'' BigBad, [[EvilChancellor Jagar]] [[EvilSorcerer Tharn]]. Tharn, who had successfully secretly usurped the Imperial Throne, had a major attraction to the Dunmeri Queen Barenziah, who took advantage in order to assist those working to bring him down by deciphering his notes in order to find the pieces of the [[DismantledMacGuffin Staff of Chaos]].
303* ''VideoGame/GrimFandango'' features Olivia, a FemmeFatale GoldDigger who definitely believes this. When protagonist Manny says he's skipping town to pursue a woman he met once and can't get out of his head, she says she has a poem for him. It's short:
304-->'''Olivia:''' [=Chu-uuuuuh-uuuuh-UUUH-uuuuh-uuuuuh-mmm-MMmMMm-mmMMmm-mmMMm-p!=]
305* The title character of ''VideoGame/MaxPayne'' in the second installment probably qualifies. He repeatedly notes that his feelings for Mona are driving him into one mess after another.
306* In ''VideoGame/Persona3 FES'', near the climax of The Answer, Yukari's character is completely derailed in a way that makes no sense due to her love for the protagonist. [[spoiler: She selfishly wants to use the chance to she has to go back to the moment the MC sacrificed himself and stop him from doing it, regardless that this will ''definitely'' cause Nyx to return and destroy the world. This creates a ConflictBall that results in SEES fighting one another and nearly ending their friendships.]]
307* In ''Franchise/{{Pokemon}},'' this is what happens if a Pokémon is hit with the move Attract from a Pokémon of the opposite gender, or if the attacking Pokémon uses a move that require physical contact (e.g. Tackle) onto a Pokémon of the opposite gender with the Cute Charm ability (though it works only 30% of the time in this case).
308* Played ''heartbreakingly'' in ''VideoGame/PrinceOfPersia2008''. [[spoiler:Magical waif Elika [[HeroicSacrifice sacrifices herself]] to reseal the BigBad Ahriman back into [[SealedEvilInACan his can]]. The Prince, up to this point a cynical {{Jerkass}} loner with a smarmy comment for everything, is left lost. [[AlwaysSaveTheGirl So he decides to destroy Ahriman's seal and bring both of them back into the world again, screwing over the entire world]]. The expanded epilogue tries to rationalise his choice by suggesting he wanted to bring Elika back so she could help him find a more permanent solution; leaving them both sealed is just playing the waiting game until somehow Ahriman is unsealed again and then the Prince (or someone else) would have to find a way to beat him ''without Elika's powers''. Too bad Elika doesn't buy his justification one bit, she despises him and never forgives him, in the end leaving him for good.]]
309* Luisa Fortuna of ''VideoGame/RedDeadRedemption'' is shown to be deeply in love with RebelLeader Abraham Reyes, a man who can barely remember her name and is clearly a power-hungry egomaniac. She even goes so far as to [[TooDumbToLive try and attack armed soldiers with a knife in an attempt to rescue him]].
310* Chris Redfield [[TheStoic of all people]] has a moment of this in ''Franchise/ResidentEvil'' when he initially refuses to leave his beloved partner Jill Valentine who has just gotten over her BrainwashedAndCrazy state despite Jill stating [[BigBad Wesker]] is about to TakeOverTheWorld with Uroboros.
311-->'''Jill:''' Millions will die!!\
312'''Chris:''' Well yeah but--\
313'''Jill:''' I'm alright... you need to stop him.
314* Mentioned, but averted in ''VideoGame/SlyCooperThievesInTime''. [[spoiler:When [[BitchInSheepsClothing Penelope]] is revealed [[EvilAllAlong to be untrustworthy]], she makes a [[KickTheDog cruel comment]] about Bentley "being kinda cute when he's being ''dumb''", even though he never outright shows a lack of intelligence during their ill-fated relationship. She could be referencing how Bentley failed to see Penelope's [[GoldDigger real]] [[TheSociopath personality]] behind her fake WrenchWench NiceGirl mask]]. Also inverted: [[spoiler:Penelope is an example of ''Hate'' Makes You Dumb by betraying the Cooper Gang out of spite towards Sly without [[TreacheryIsASpecialKindOfEvil thinking of the consequences]]]].
315* One sidequest in ''VideoGame/SolatoroboRedTheHunter'' has Alicia stage a fake kidnapping on herself just to get the attention of her ChildhoodFriend Waffle. The only problem is she failed to mention this plan to her sisters Flare and Stare, who thought she really was kidnapped and ends up hiring [[ContrastingSequelMainCharacter Red]] to get her out of (fake) danger. The fact that Alicia didn't give a proper description to the group she hired beyond "[[SuspectIsHatless he's a Caninu in a bi-pedal robo]]" didn't help matters, and the Pris sisters end up in ever further debt from having to pay both the SkyPirate group ''and'' Red for their troubles.
316* In ''VideoGame/TheresiaDearEmile'', the scientist Maylee says this word-for-word after she has sex with the main character of the Dear Martel story.
317* Selvaria in ''VideoGame/ValkyriaChronicles''. She's utterly devoted to Maximillian, but she doesn't realize he doesn't return her feelings until [[spoiler:he sends her to use a SuicideAttack, showing once and for all that he doesn't give half a damn about her personally]]. You'd think that'd be a bad move on Max's part, considering that Selvaria could turn him into a [=McNugget=] combo with less effort than it takes for her to get dressed in the morning, plus she's developed a tenuous rapport with her counterpart on the good guys' side and could probably defect to their side. [[spoiler: But no. She goes ahead and blows herself up, tearfully praising Max's name, but makes a point of betraying him at the last second by sparing the only people in the Gallian military capable of stopping him.]]
318[[/folder]]
319
320[[folder:Visual Novels]]
321* Phoenix Wright from ''Franchise/AceAttorney'' is generally intelligent [[IndyPloy in his own way]], but in a backstory case he absolutely refuses to believe that his girlfriend might not be who she thinks he is, despite all the evidence that she was using him, even when Mia had shown that Dahlia wanted to ''kill him'', going so far as to declare that [[AffectionateNickname "Dollie"]] who testified against him during his trial was somehow a fake. [[spoiler:And he was ''[[SubvertedTrope right]]'', sort of. The girl who was testifying was the real Dahlia, but the girl he'd been dating was actually Dahlia's twin sister Iris, who was [[SheepInSheepsClothing genuinely as nice as she seemed]].]]
322* Discussed in ''VisualNovel/KindredSpiritsOnTheRoof'', during the extra "Cardinal Symptom: Idiocy." When Megumi, one of the [[OurGhostsAreDifferent "kindred spirits"]] observes Youka, who's probably the least intelligent member of the cast, acting rather foolishly as a result of her crush on Aki, Megumi recalls how she herself acted when she was alive and had fallen in love with Sachi(who had been a ghost for 50 years by this point). She then concludes that, "In fact, the number one symptom of love might be that it turns you into an idiot."
323* In the ''VisualNovel/ZeroEscape'' series, Junpei and Akane are reasonably intelligent people, except when they're around each other. [[spoiler:Maybe that's why Akane abandoned him when [[VisualNovel/VirtuesLastReward she went off to save the world from Radical-6]]]]. This trope is a major plot point in Akane's backstory, [[spoiler:where it nearly gets her killed and then saves her life]]. She doesn't get any better in ''VisualNovel/ZeroTimeDilemma'', where Junpei dying at any point causes her to fly into irrational, homicidal rage.
324[[/folder]]
325
326[[folder:Web Animation]]
327* ''WebAnimation/ADayWithBowserJr'': In Rise of Fawful (part 1), Bowser Jr's crush on Kylie renders him oblivious to Fawful's obvious ploy to extract secret information from him.
328[[/folder]]
329
330[[folder:Web Comics]]
331* ''Webcomic/DICETheCubeThatChangesEverything'':
332** Despite witnessing [[spoiler:Mooyoung]] killing all of his friends, the first thing [[spoiler:Taebin]] does upon seeing him fall from the sky is run to him and beg him to not die. He also agrees to help him with his plan [[spoiler:to become an S-Ranker, albeit with some hesitation on his part, ready to do practically anything to save Mooyoung's life. Including letting him into his body and starting the PVP slaughter all over again.]]
333** [[spoiler:Eunju]] still believes in [[spoiler:Taebin even though he himself has stated that he cannot keep control of his own body for long and Mooyoung is more than willing to kill her for her bounty. She also disregards that Taebin didn't tell her being a Dicer when the incidents happened.]]
334** Despite knowing explicitly that X was doing his best to screw with their feelings, [[spoiler:Mio takes his bait and thinks Dongtae chose Eunju over her ([[UnreliableExpositor the reality]] was that he chose Eunju to lose her Dice knowing that Mio needed hers and Eunju preferred that anyway)]]. Not helping was after [[spoiler:Dongtae wakes up, him immediately going out to find Eunju, understandably so since she could've been heavily damaged by the fight with X. Thus, while she does still love Dongtae, she breaks up with him and acts cold on the outside both to keep him safe, but also as a bit of payback. But if she took him at his word to begin with, they would've never been separated and the subterfuge would be unnecessary.]]
335%%* ''Webcomic/{{Digger}}'': Four simple words: "Skin-Painter is fool."
336* ''Webcomic/ElGoonishShive'': [[http://www.egscomics.com/?date=2002-05-29 In her very first appearance]], Susan declares people get stupid when they fall in love.
337* ''Webcomic/GirlGenius'':
338** [[http://www.girlgeniusonline.com/comic.php?date=20110427 This exchange]].
339--->'''Agatha:''' But since [Gil]'s the only one who ''has'' [[ObfuscatingStupidity been playing the fool around me]], I can't be sure.\
340''[{{Beat}} panel with Gil [[LuminescentBlush red as a tomato]]]''\
341'''Tarvek:''' Hee. You weren't ''playing'' the idiot with ''her'', were you?\
342'''Gil:''' ''Shut up!''
343** [[LampshadeHanging Lampshaded]] as Gil is fighting [[SuperSoldier Captain Vole]]:
344---> '''Tarvek:''' Is this going to be some kind of [[MachoMasochism macho]] exercise where you insist on battling a superior opponent [[IWorkAlone alone]] in some misguided attempt to "prove" your intrinsic worth?\
345'''Gil:''' No, no! I'm only '''that''' stupid in front of Agatha!\
346'''Tarvek:''' [[LoveTriangle Drat]].
347** Tarvek himself acquires [[http://www.girlgeniusonline.com/comic.php?date=20120516 fumbled speech]] on the subject and generally [[http://www.girlgeniusonline.com/comic.php?date=20110907 doesn't]] fare much better:
348--->'''Violetta:''' You are ''joking!'' I ''really'' have to ''explain'' this to you? You ''[[MagnificentBastard live]]'' for this stuff! ''Argh!'' It ''must'' be love.
349** Also implied to have happened to Bill Heterodyne in regards to Lucrezia. He was insistent that she could join the "good guys" despite blatant and constant evidence to the contrary.
350** Then there was Moloch von Zinzer, whose cooking would invariably go from "acceptable" to "boiled sponge with gravy" immediately after serving Sanaa.
351** Lampshaded again when [[https://www.girlgeniusonline.com/comic.php?date=20200717#.YFUGONynyUl Krosp talks to Martellus]]:
352--->'''Krosp''': You humans. You let romance ''mess with your heads''. Agatha ''hates'' you. You should give up and get back to conquering Europa. (Mmm, cheese dip.) But instead you pursue her to the point of tying yourself to her with science. And now you're ''stuck'' wasting time ''here'', with ''no chance'' of success. You're as ''dumb'' as the ''other two''. Keep this up -- you'll be ''dead by Christmas''.
353* Matt from ''Webcomic/HodgesPond'' still loves Trixie despite the fact she put him in a 3-week coma.
354* PlayedForDrama in ''Webcomic/JoeVsElanSchool''. In college, Joe is so infatuated with his drug-addicted classmate Eva that he eagerly takes 12 pills she gives him to "party" with her, despite not knowing what the hell they even are, and he doesn't question it when she downs 18 of the same pills. His narration even {{lampshade}}s how stupid this is.
355* Webcomic/SandraAndWoo [[http://www.sandraandwoo.com/2011/12/19/0335-the-poem-iii/ nails it]].
356* ''Webcomic/{{Sunstone}}'':
357** This hit Marion hard; being new to the type of relationship she was sharing with Alan caused her to discard her better judgement in favor of doing everything she could to take things further, leading to her neglecting the safety aspects integral to BDSM. [[BodyHorror This does not end well.]]
358** Ally&Lisa aren't exempt from this either. It's the main reason they rush into moving with each other [[http://www.urbandictionary.com/define.php?term=Uhaul%20Lesbian just three weeks after meeting in person]].
359[[/folder]]
360
361[[folder:Western Animation]]
362* ''WesternAnimation/ChalkZone'': Snap goes stupid every time Queen Rabsheeba shows up. Usually stuff like eating his magazine, turning into dust, etc.
363* Referenced in ''WesternAnimation/{{Futurama}}'', although the circumstances and Fry's general level of intelligence stop it being an example.
364-->'''[[ItMakesSenseInContext The Worm King]]:''' He's bluffing! No creature would willingly make an idiot out of itself!\
365'''Fry:''' Obviously you've never been in love!
366* ''WesternAnimation/GeneratorRex'': It's observed by multiple characters that Circe's mere presence is enough for Rex to lose what little common sense he has. Unfortunately, this includes [[BigBad Van Kleiss]], who recruits Circe into his ranks because of the effect she has on Rex.
367* ''WesternAnimation/TheGrimAdventuresOfBillyAndMandy'' makes fun of this trope. In the movie "Big Boogey Adventure", Grim and Billy have this conversation referring to Irwin's big fight scene.
368-->'''Billy:''' Hang on; how did [[TookALevelInBadass Irwin get so cool?]]\
369'''Grim:''' He's driven by ThePowerOfLove.\
370'''Billy:''' Really?\
371'''Grim:''' Love makes people do all sorts of stupid things.\
372'''Billy:''' I love ''everything.''\
373'''Grim:''' [[DeadpanSnarker That explains a lot.]]
374* ''WesternAnimation/{{Kaeloo}}'': Mr. Cat is the smartest of all the characters, but he does some pretty idiotic things to get the attention of his crush [[ObliviousToLove Kaeloo]].
375* ''WesternAnimation/MiraculousLadybug'': Many of Marinette's worst decisions are driven by her unrequited crush on Adrien, especially in Season 1. This includes wasting a Lucky Charm to try and keep Chloe away from him, stealing his phone to erase an embarrassing voicemail, and verbally tearing down Lila after she starts putting the moves on him.
376* ''WesternAnimation/MyLittlePonyFriendshipIsMagic'' has a non-romantic example. In the episode "[[Recap/MyLittlePonyFriendshipIsMagicS4E26TwilightsKingdomPart2 Twilight's Kingdom, Part 2]]", after experiencing Fluttershy's friendship, Discord is so eager to have [[BigBad Tirek]] for a friend that he becomes {{Genre Blind|ness}} to the possibility that Tirek would double-cross him.
377* ''WesternAnimation/TheOwlHouse'': Amity Blight is normally an AcademicAlphaBitch with the [[SugarAndIcePersonality occasional softer moment.]] Once she develops a crush on [[spoiler:Luz Noceda]], however, she frequently descends into a [[CrushBlush blushing mess]] who can [[GibberishOfLove barely form coherent sentences]] around her.
378-->'''Amity:''' ''[When her crush offers to carry her after having broken her leg]'' I'm fine! Ahahaha! Who's Amity?! ''[Gets picked up into her crush's arms bridal style]'' Haha. Oh. Wow. ''Sports.''
379** This later ends up getting PlayedForDrama in "Through the Looking Glass Ruins" when she loses her job at the library after helping [[spoiler:Luz]] sneak into the forbidden section due to the implied offer of a date (this despite [[spoiler:Luz]] knowing how important her job is to her and trying to talk her out of it several times) and she's left in tears wondering why she always does such stupid things around her.
380* ''WesternAnimation/RockosModernLife'':
381** In "An Elk For Heffer" when Heffer falls in love with an Elk named Elkie, [[BrainWithAManualControl his heart starts influencing his actions]] and starts pulling switches labeled "Look Stupid", "Stumble Over" and "Forget Name".
382** In "Wallaby on Wheels", Rocko is offered a chance to go through a dangerous obstacle course in the hopes of impressing a girl, despite being an inexperienced roller-skater. His internal debate is represented by a boxing match between his heart and his brain, where the brain goes down in one hit and the announcer states "Emotions win over self-preservation!"
383* ''WesternAnimation/SheRaAndThePrincessesOfPower'': [[IgnoredEnamoredUnderling Scorpia]] loses a decent whack of her IQ whenever she thinks about Catra. Sometimes, this simply manifests as LoveMartyr-style wishful thinking about how eventually her "[[TransparentCloset friendship]]" will encourage Catra to become a better person despite Catra being entirely uninterested in 1) Scorpia (she's much too focused on her ''deeply'' dysfunctional FoeRomanceSubtext with [[TheHero Adora]]) and 2) becoming a better person (she's much too focused on lashing out at the world in ways that, invariably, lead to her getting hurt more and lashing out harder). Other times, the crush clouds her judgment to the point of causing blatant stupidity; in "Roll With It", for example, so much of her brain is taken up with her infatuation that she assigns one of the few actual soldiers under her command to the vitally important task of... figuring out Catra's favorite colour.
384* ''WesternAnimation/SouthPark'': In "The Succubus", the typically smart Chef falls for a succubus, who has this effect on him, albeit via MoreThanMindControl on her part. It takes the boys exposing her to get him back to reality.
385* ''WesternAnimation/SpongeBobSquarePants'': In the episode "Krusty Love", Mr. Krabs falls so deeply in love with Mrs. Puff that almost all sense of reason leaves him. When first introduced to her, he's so lovestruck that he [[GibberishOfLove can't put any of his thoughts into words]], requiring [=SpongeBob=] to translate his gibberish into a date request. During said date, his normal frugality goes out the window, and he somehow manages to spend ''$100,000'' all on expensive gifts for her. After hiring [=SpongeBob=] to be his financial assistant for their next date, he falls into this pitfall again by contradicting his own orders and demanding [=SpongeBob=] fetch tons of gifts for Mrs. Puff. He manages to amass a pile of extravagant gifts in front of Mrs. Puff's house, all before they got to the park to start their date!
386* In the ''WesternAnimation/TomAndJerry'' short “Blue Cat Blues”, Tom develops a major case of this when he sees a white female cat walk by and falls head over heels for her. It soon becomes apparent to everyone except Tom that the white cat is a GoldDigger who promptly dumps Tom when the obscenely wealthy Butch sees her and courts her. Unfortunately, Tom [[MadLove drives himself into poverty and slavery to win her back, to no avail]], and he becomes [[DrivenToSuicide suicidal.]]
387* ''WesternAnimation/TotalDrama'':
388** Alejandro ruthlessly exploits this trope, using his charms to make the female contestants make stupid decisions that get them eliminated. Unfortunately for him, [[LadykillerInLove he develops genuine feelings for Heather]], which causes him to lose his focus and allows her to turn his strategy back on him at a critical moment.
389** Rodney is an extreme parody of this trope in ''Pahkitew Island''. Every single time he attempts to talk to a female character he just ends up muttering [[CannotSpitItOut incoherent gibberish]].
390** Noah falls into this in the spinoff ''WesternAnimation/TotalDramaPresentsTheRidonculousRace''. He develops a crush on Emma during the race, causing him to start acting less like his sarcastic, cynical self, and more weird and awkward from being lovestruck. This makes Owen believe that he's getting ill, and Kitty ends up having to spell it out for him. He snaps out of the unresponsive part after "Hawaiian Honeyruin", though he still makes quite a few social gaffes.
391--->'''Kitty:''' He just likes my sister.\
392'''Owen:''' But he's being so goofy and awkward and-- (eyes widen) Ohhh.
393* The 1954 ''WesternAnimation/WoodyWoodpecker'' cartoon "Alley to Bali" has a volcano god on the Pacific island command a FemmeFatale to obtain "long pig," that is, two sailors on the island, as a worthy sacrifice. Sailors Woody Woodpecker and Buzz Buzzard, here as amiable shipmates rather than bitter rivals, are lured to the volcano's caldera. There, the two shipmates nearly perish as a result of pursuing this wiggly minx.
394* ''WesternAnimation/WorkItOutWombats'': Mr. E has a crush on Ellie. In "Measure for Measure," he goes crazy while trying to find a hat for Ellie at the Everything Emporium. When there's not a hat that suits her, Mr. E melodramatically ''fires himself''. He only rehires himself when the wombats tell him that they're making a hat for Ellie. He never acts like this with anyone else but Ellie.
395[[/folder]]
396
397[[folder:Real Life]]
398* TruthInTelevision, maybe? [[http://www.telegraph.co.uk/health/healthnews/6132718/Men-lose-their-minds-speaking-to-pretty-women.html This article]] claims it is.
399* Everyone in this Website/{{Cracked}} article: [[http://www.cracked.com/article_18922_the-6-biggest-over-achievements-in-history-marriage.html "The 6 Biggest Over-Achievements in the History of Marriage"]]. From entry #6:
400-->Why was [the Earl of Snowdon] so full of himself that he took marrying a princess for granted? Some say ego, some blame Margaret, but his prep school classmates probably have the real answer here: He had a monster dong. And that lets you get away with anything.
401* While it might be a better example of LustMakesYouDumb instead of love, people who live in more rural areas will tell you that you're most likely to hit a wild animal crossing the road during the spring. Since spring is mating season when most female mammals go into heat, it would start to appear that the idea of mating starts to override an animal's basic common sense and self-preservation.
402* Exploited by Kunoichi, or female ninja. It was all too easy to manipulate stressed officers to reveal vital information with just a promise of a pleasurable night.
403* Creator/SteveIrwin's account of the first time he saw his future wife Terri was that he was [[LoveAtFirstSight so lovestruck]] that he nearly got eaten by the crocodile he was feeding at the time.
404* The Japanese kanji [[http://tangorin.com/kanji/惚 惚]] can be translated as both "fall in love with" and "grow senile".
405* Young teens can act silly or do silly things when they have crushes.
406[[/folder]]

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