Do you ever look round a group of people and mentally pair them all off with each other, and then see who you're left with? Maybe it's just me. It's probably just me. For example: there are six people, two of whom are already going out, and another two are flirting, so obviously you are left with the one remaining person. The problem is that I always seem to end up with people I'd rather not be paired up with... I suppose it is sometimes men, so that reduces the chance of a happy pairing!
Anyway, I'll stop this discussion, I'm probably sounding more and more peculiar in the head.