When will her mates see her for what she really is?

Ok so there is this girl from my course who I cannot stand. She is just a bully and I had to be partners with her . I heard her I talking bout me in the toilets then the next day she was bching bout her mate georgia calling her a twofaced sl. and she said that that the blonde girls in our group were all b*hes. My course contains a small amount of girls so I knew there was bound to bching but what she says is out of order,nasty and totally unfair. only me and this other one girl knows how much of a real bch she is because she knew her from thorndon . And my best mate knew her from secondary cool aswell and warned me about how nasty she is. Everyone in my course apart from me and one other person know her mean side .but at the mo she has lots of friends who she hangs out with. I dont think georgia likes her because she was wit charlotte when she was bchin and she was the one who looked after me afterwards. Some people thinks she is alright but shes not. When are people gunna find this out ? She is sooo catty and is constantly winging about something or someone and it rubs off on everybody eles so then everyone is talking bout someone. And because of her the mood is always miserable and catty . It gets on my nerves .