This is unusual for me... I have feelings for a "not a relationships type" of guy. Help: I want them to stop!?

You know why you shouldn't like this guy. But our emotions don't always follow the rules of logic. Do you want to save/nurture him? Meaning, fix the damage caused by a troubled childhood and give him some idea of how relationships should work (especially since you have all this good experience). You know it's a futile effort. First step in fixing the misplaced emotions is recognizing why they are there. Only you know why you like the guy. If you do want to "fix" him recognize that you can't intellectually. Support him, be there for him as a friend but know that he can not provide you with want you need and deserve now. When you feel yourself wanting him think about why it wouldn't work and how that relationship would leave you unfulfilled. Keep letting your head dominate the feelings you have toward him. The infatuation will run its course. In the mean time, go out with other guys, don't spend a lot of time with him, hang out with your sisters, you will get over it.