Contrary to my other thread.
It's not that I go for male models by any means, really not bothered if a guy is 'plain'.
However there was a guy recently I saw a few times, sometimes when I saw him I really didn't think he was good looking at all.
However on other occasions I thought he was ok. Then when I saw him again I'd change my mind and think yep not attractive at all. However something about him drew me in.