Black chicks who want to be white.

I'm a senior in highschool I consider to be culurally mixed there's a girl named LeAndra I've noticed from around the way who happens to be a Hi and bye friend of my friend's associate etc. Well the problem is she rolls with a majority of white people and acts in characteristics that I think are "stereotypically" white, it just annoys me that she doesn't seems to take pride in her own culture and I don't think she was influenced by her surroundings because the are of South Florida we live in is pretty diverse. Some may say I have a personal problem but I've actually had a conversation with this girl and I found her conversation very offensive. Does anyone else find black girls who act white offensive. I'm not saying to kick in the ebonics and slang, just keep it real.