I think my last relationship partially ended due to the fact that I wanted to game too often.
As for both people in a relationship being gamers and it always working out. I don't know, my first gf got into gaming eventually and rather enjoyed it, but she would often just "not feel like gaming" about an hour before all the people were supposed to show up at my house to game. She'd go upstairs and play computer games and complain about the fact that she was alone all day afterwards.
I also know a couple who games together. The woman is our DM for one of our games. They've made a deal with each other though that neither of them are ever allowed to game when the other is not with them. The man gets 2 random days off each week. So, our gaming group has to play on whatever days he has off, of which he generally only knows a week in advance. So, in order for me to show up, I have to leave most of my week open, just in case.
At any rate, the point is that the man works evenings, so most days the woman sits around and does nothing at home. He almost never gets Saturdays off. So I invited her to play in my Saturday game that I DM. She originally said yes, then changed her mind about 10 minutes later after her fiancee (the man) talked to her about it. They "jointly" decided that since he couldn't make it on Saturdays, neither could she. I've talked to her about it. She says she is fine with the situation. Still, I saw the look on her face when she had to tell me that she changed her mind about playing. In this case, I just feel bad for her because she really likes to game, and she works at a game store but he has been on her case for spending too much time preparing for her D&D game and not enough time with him. He doesn't even make up his own characters, she has to do it for him.
