I'm the first person to admit, I get one-itis pretty badly. Very badly. I have been an absolute wreck because of girls before. I think a huge part of the reason, if not the entire reason, is because I have a huge list of criteria a girl must meet. The more I date, the more that list grows. Therefore, when I actually find someone who passes most of my criteria, I develop one-itis because I realize how rare that is. If I didn't give a shit about the girls I dated, then I would have more lax standards, there would be a bigger pool of availability, and it would be different. It's like PocoDiablo said, "everything changes when you have options." Well, the pickier you are, the fewer options you have, the worse you get one-itis. But I can't make myself less picky. I've tried, and I can't. My criteria that a woman must meet is probably rediculous and unreasonable, but I can't help it. I've dated women who don't "measure up" before and I wasn't happy. I'm not even kidding. I would estimate that, on my criteria alone, less than 1% of the female population is dateable (might be spelled wrong, but "datable" didn't look right). Those odds suck. That means less than 1 out of every 100 women I meet might pass, and chances are the women that do pass already have SOs. Anyway, that's my theory. I should post my criteria up here so people can tell me how unreasonable I am.