I just realized I'm racist, do you think this is a racist thought?

I feel so bad because I just caught myself being racist - against my own race even. I'm on craiglist looking for a car and I got bored so I went to the personals because people always talk about how funny they are or whatever, so anyway there was this guy on there with his cheesy pics and body, he looked like he was trying to be a model or something, idk, lol, but he said he was looking for a girl of any race, but "points if you're extra dark Black girl" and the first thing in my mind like it just flashed was that he just wanted to have with her, like some , but not a relationship. I'm a carmel colored Black girl though, and I felt bad about it after, because I caught myself thinking it & its such a stupid idea, like I've internalized that darker girls aren't sought out for relationships, but only for . :\