Lucky G, I have the same problem, and they are the ones who usually act as though they wouldn't mind a piece of me if they weren't already committed. The other women I like are the ones who either go for the same asshole in different bodies (Yeah, that's actually what turns them on even though they gripe about it), or to the actual same guy over and over again.
That Corrolla quote describes me pretty well... women just aren't attracted to me unless they have come to the self-realization of what that pattern really is, which most often means that they already met the right one or they are older than me... for some reason that's a cultural barrier I have trouble getting past.. I'm not into the whole cougar thing.