AZZ holes who get to be a bother?

omg i hate being in Middle School too many drama fights. There is this girl who's an AZZ and a couple of parents say to stay away from her. She keeps emailing me but she's kinda dumb. She won't get out of my face and i feel like saying back off but i can't, I'm not at all intimadated by her and her sister always fights for her. She lies. I thinks she's jealous. My friends are being bullied too, what do I do?