Do any white guys in Orange County actually like black girls for serious girlfriends?

I'm a nice college girl, in good shape (5'8 and 134 lbs. and not 'ghetto') and I just find that most white guys that act or say they like me just want to use me. When I don't let them, they go on and get their white girlfriend. It seems to be a trend. It's like it's ingrained that no matter how ladylike I am, they just see me as something to play around with and nothing more. It sucks because I find myself really attracted to them.