Soo many edgelords who always think "oh justice is torturing and raping someone who did bad things" is the reason edgelords are so cringe. A cycle of violence can't end by just committing more violence it just leads to more retaliation in the end.
Of course i'm not saying "be friends with everyone" either. Yes there are unrepentant villains in the world that death is probably the only solution but, we're talking about a middle school/high school age girl in the throes of teenage hormones not Jeffery Dahmer or Charles Manson.
She's less evil and more a child who never grew up and doesn't know how to deal with her complex emotions towards someone she likes.