Why?

maybe you should think about it more and answer it yourself. cause only you would know.

hmm... are you sure it's hate, rather than sheer annoyance? sometimes people can just get annoyed. Give them some space and think about it, then go talk to them all idividually about how you feel they're acting towards you. If it's really hate, you don't need them, because in that case, they were never your friends in the first place. I'm sure there are plenty of people who would treat you better.