I think we share a similar affliction. The girls I take the most interest in are always unavailable on some level. I am exactly the same way, and people have accused me of only going after unavailable women, because I have a fear of commitment or something. But I mean, if they are really that great, there are others who agree with me, and they would already be taken by someone who's met her before I have. And of course, it's not very gentlemanly to be a breaker of relationships.... Anyway, it's minorly annoying.