I have friends who obsess over Nintendo games, friends who are girls who obsess over Nintendo games, and friends with girlfriends who obsess over Nintendo games, and friends who are girls with boyfriends who obsess over Nintendo games. I don't have a girlfriend, mostly because it seems the ones who obsess over Nintendo games are all taken! ;D
If my future soul mate doesn't obsess over Nintendo games like I do, too bad for her. She'll have to get used to it or get into it. Multiplayer is fun.