A friend isn't someone who says they hate you, or who someone won't support you when you need support. I'd suggest find other people to be around and to stop being around this person. Also you shouldn't be paranoid or nervous about going to school just because of this one person.
Yeah, if this isn't a red flag then i don't know what, that guy is not your friend, search for other people who actually love you, there are plenty more fish in the sea
SO I HAVE A "FRIEND"; AND HE SAYS HE HATES ME AND IF I HAVE ANOTHER MENTAL BREAKDOWN HE'S GOING TO HIT ME WITH HIS BOOK; WHAT SHOULD I DO? I'M PARANOID NOW AND REALLY NERVOUS ABOUT GOING TO SCHOOL