I don't think I've ever disliked, or "hated" a character in an anime before I started watching ReLIFE.
THIS motherfucker. I have NEVER seen such an annoying character in an anime before. She constantly lashes out on her "friends", taking her problems out on them constantly despite the fact that they do everything in their power to make sure she's doing at least okay. It's even worse because she becomes self-aware of how she acts towards them in the show, but STILL continues to do it after the fact. Making tsun characters, or characters that have emotional issues is ok, making them argue with their friends for the sake of melodrama is honestly even ok with me (as long as it's entertaining), but if a character is CONSTANTLY doing this the ENTIRE show, it gets a bit trite and overall becomes a chore to watch. In a real life situation, she would be insanely lucky to have the friends she did in the show after she spent about 10 episodes being like this, because most would have just walked away and been justified in doing so.
/end rant
Still a good show though.