I have no friends 🙃

A few days ago I cut off my friends. Someone made me realize I didn't need them. They never paid any attention to me, they would take bad about me, they always saw the bad in people, and they made me feel like shit. I'm kind of happy I cut them off since the kind of ditched me. These people were my "mains", I guess you could say. They began to talk shit on me and say bad things about me. They asked my boyfriend to side with them and obviously he said no. Now they're saying my boyfriend changed me. I believe he changed me for the better, ever since we began dating, I tried to be nicer to people and made a couple of acquaintances. I skipped school today so I didn't have to deal with them. Now I have to go and I will have no where to sit in the auditorium, lunch, and band class. I don't want them to know I'm not shit with out them. What do I do?