I had the same problem. We got into some serious arguments over me playing too much. I realized I f'd up when I totally forgot it was valentine's day. Boy was she mad lol. You just have to find the right balance. Instead of doing all nightfalls on Tuesday night. Do 2 and finish the third on wednesday. At the same time she has to realize that this game is not like other games it's probably one of the best games ever period imo. I've never played a game as much as I've played destiny. Talk it out. If she can't accept that ur gamer than she's not for you dude.