Anything that has your undivided attention will never be tolerated.I went through the same with my ex over WoW. We fought about it daily. I'm not saying dump her, but don't let her control the situation. If it's really that big of a deal make her make the choice. If she really cares for you then you guys will be able to work it out. If not, don't sweat it. OR if you really want to be with her then you can bump gaming down your list of priorities.