Bullied By Friends

So I am in middle school and I have a pretty good friend circle. And I have friends who are actually my friends but there is these girls who are just rude. So there was this kid who I was friends with and he is in a grade above me so we talked a bit. One of my “friends” (I call her B) she told him I liked him and I didnt. And that is not the bad part. B told him I wanted to do nasty things with him and love him and that was not true. So that whole grade started to make fun of me. But B’s friend C started become physical with me about a month later. B called me over to talk to her behind the school and they both beat me up. I was left there until a teacher helped me. I do not know what to do and I am happy it is the weekend. It still happens and idk what to do. I have bruises and scares and black eyes sometimes.