You're judging the book by its cover and still going against what you said about people not showing up. Since I was little I was taught that real friends are few and I didn't go out into the world talking about who I am, what I like, about my past and my plans, among other things because trust, nowadays, is one of the '' coins '' more valuable. But even though I have this side of not showing myself to people, I don't go around attacking or bullying others like Bella did, no matter your past, you should never do anything bad to someone else if they didn't deserve it.
i 100% dont agree with bullying, this is not me saying that i do. Every single person is different, everyone reacts differently and deals with things differently, I cant really remember the start of the game but im sure it was saying the wrong uniform which id say is more of a prank than bullying, i cant remember if anything happened after to make it bullying.
We all have different levels of what we will take and what we wont, we all have a limit. She never reached mine and for me i like the character, i think she is unique and she interests me a lot, i think once you break her walls down a bit you will see a really good side to her too.
I dont think she genuinely wants to hurt anyone with what she does, unless they have wronged her like her neighbours, i think its more of a defense thing so people dont get close to her or like her, its like some people will try make you dislike their fake self so you dont get close see who they really are and dislike them, idk if that is true with this its just my perspective.
saying all of that everyone is allowed to like the characters they want and dislike who they want, i was just giving you reasoning for why i personally like her and my reasoning for looking past them things.