At first the bit at the start about Bohemian Rhapsody being both Lia and Fiona's favorite song was just a bit of an "these two will be good friends" moment and some character building. But it never made much sense for Lia's character, which was very sweet and girl-next-door, if not a tad shy. After the Wham Episode and The Reveal Reveal that Lia had been a sociopathic murderer/torturer for several centuries, suddenly it makes sense — she identifies with the song because she has been in that exact same spot herself.
The fact that early in the comic all the straight people were evil and Fiona was saved from her loneliness by a crew of magical gays can appear bothersome. However, with the big reveal at the end of part One that this is all Fiona's coma dream, it all makes sense. As an outsiderish girl coming to terms with her sexuality, of course Fiona is going to feel biased towards LGBT people, and her dream exaggerates the feeling of isolation and aggression she gets from the real people in her life. If you read the first part as straight from the subconscious of an unhappy, unconscious teenager, it becomes much more reasonable.
Sadako's father went through a lot. Imagine: you go to England with your daughter in the 1870s as an ambassador for Japan. Your daughter struggles in school and is constantly lost in dreams, and all your lectures seem to go in one ear and out the other. You agree to let her try a little longer in public school because she begs you to give her a chance — and then a short while later, you learn she's dead after being shoved through a glass window and the people that did it fled the scene. We never see much of Sadako's father or what he felt or did when he found out his child had been killed.
Fiona's dad and stepmom are likely devastated. Their teenage daughter tried to kill herself after finding out her mother's attempt to die with her failed, spent almost two weeks in a coma, and then when she comes to she's still suicidal and struggling with insomnia. Then she goes to sleep, finally getting some rest— and never wakes up again.
