talk it out! talk to ppl u trust, and soon u will get respect. if she bullies u and it becomes rlly bad,talk about getting the police involved and she'll back off if shes beng a user, and she talks about u and says S**t to u, ask her whats up, and whats going on. say, "we usd to be such good friends!! what happened to us?!" talk it out and ask her wssup that really helps trust me.. ive been there