Cut that chick off with the quickness.

Her friends need to be checking her on that shyt.
She reminds me of this chick I was friends with a few years ago....well we weren't even friends, we were part of the same sports group. This chick barely ever said two words to me in general, but every time a new broad would come around or if she saw me speaking with a female she somehow always found herself in the vicinity and would say some slick bullshyt and act in similar ways. She actually embarassed herself once when a female cousin met me outside afterwards.
What you described ain't no friendship at all. She's just full of hate.