I'm on the other side of the line. I don't seem to be physically able to do the 'fall in love' thing. This isn't to say that I don't love people, but so far this has more or less been restricted to my close family.

Friends I care for and feel affection/fondness for. But I appear to be lacking the hormones or whatever it is that causes the limerance effect. Makes starting a relationship fairly hard (I've never initiated one myself). Although should I tire of the single life and actually find someone compatible, they'll also be able to be fairly certain that I won't stray due to fleeting attractions.