Were they friends in the first place?

Alright this girl at my school hates me because I hate her and I hate her because she hates me . . . No mending could ever be done between us.
Well, she stared Junior year, [[last year]] and acted like my best friend then, but now . .She is taking my friends away! I couldn't believe they'ed fall for such trickery, but it seems so. I cry at Study Hall, silent, painful tears. I hate lieing and I lie all the time saying "Oh, I fell down," or "I hit my head on locker,". I've tried so hard to show them who she is, but it doesn't work! I have but two friends, and that's all. I miss them terribly, and I hate her!

I'm sorry you have to go through it, I had the same issues in highschool, someone did that with my bestfriend (and my bestfriend claimed to hate her for years!), I dunno if there's much you can do... just dont let her see it getting to you and try and ignore it as much as possible... how good of a friend could they have been if they left you based on what someone else said? I know it's hard, but high school will end, and then you will never have to see them again...