I have same situation. There about 1% of women that are ok with gaming, and about 50% of that 1% dont mind you playing when you get older and are married. I am guessing you encroached on "our" time, when you should have been snoring with her on the couch or just watching tv. Just ask her how its "sad" when she is sleeping and you have a cheap hobby? What you should do next is take a week or two off from WGT at night, and instead have guys over getting drunk, or hit the bars to watch ballgames. When she has a problem with that, ask which she prefers, that or wgt.
I suggested that option because I was getting grief for less then once per week fishing nights. She quited down right after I proposed Sunday football at the bar, and Monday night football parties.
I would love to hear from some female members on the subject, but I imagine the few that are on here are already pretty cool since they obviously dont mind online gaming, since they partake.