This girl hates me for no reason?

[IListen2Dubstep]

So I'm in high school, and there's this girl in my Biology class that I don't talk to at all. I was talking to a group of friends in the class, and she comes over and says "ew it's you." I ignored her. That after i sent her a message on facebook, and she said she doesn't hate me and she doesn't even know me. The following day she said something like what she said the other day. Talked to her on FB again. Said I'm weird for trying to get an answer out of her, even though i wasn't threatening or anything. And she said for me to shut up. WTF is this girl's problem?

[Peter]

Who knows. Sounds like the girl has problems. Don't worry about her.

[Manuela]

Well that's just it... Ur in high school. And she seems like a snobby bittcchh. Ignore her she just seems stupid as hel l l . And I she keeps on tell her to fuhhk off. That should do it

[Nikita]

Sounds like high school. Some girls are bitches. Just ignore her.