I had an ex who was actually a bit tooo enthusiastic. I mean she wanted to play more than me, in games that I loathed, with people I didn't like..or worse (and more tragically) with her. I mean, she was ok until it started involving games - and then it was this weird transition into "Gamer geek chick" where she thought normal social rules somehow didn't apply because someone was sitting at the table with a GM's screen in front of them. She still to this day sort of capitalizes the sort of people I don't want to game with, the ones that bring their games away from their games, that flirt or otherwise use the game as an excuse to exercise forbidden behaviors, that cheat on die rolls whenever possible, that can't be bother to learn the rules of the game or the table, who insist on playing nonsensicle variations on the same annoying character no matter what game is played, and basically everything else I'd ditched way back in Middle School. Really, for a mother in her twenties it was sort of pathetic. I'm particularly about who I play with in the best of circumstances, I HATED being leashed to a player I hated even when I liked the woman she was away from the game.
Ah well, at least it taught me that people who are crazy in games will eventually turn nuts in real life. *shudder* If I ever marry I think the best thing would be living apart, postcards, and occasional meetings for sex.