I have the same exact problem. I think its because they are more dominant and we have instincts to go for the dominant one over the weaker suspect. Just like animals. Or you could possibly be depressed and want to just make yourself worse. No way of telling what it is xD
If all you ever do is interact with "fuck boys", maybe that is what you want. We can not change our desires, and beyond the more... physical aspects of a relationship, it will be hard for you to find someone who you value for non physical reason and vice versa.
Lets face it. Most highschol students just want to be porked.