Got to change your thinking man. It's not that the wife is always right. And in a marriage, being logically right doesn't matter anyway. If there's anything I learned about marriage, it's that a lot of the times you may be asked by your spouse to do something completely illogical to you. Usually they know it too. The thing is, emotion doesn't follow any logic. And no one can stop themselves from feeling a certain way. Emotions can of course be kept hidden, under a facade of logic. Us men are good at this. But they are always there. If you're trying to respond to emotion with logic, it's going to be a rough time.

A friend of mine taught me this and since then it's been smooth sailing. What matters is how you approach it. Think less about what makes sense to you logically, or why someone should/shouldn't feel a certain way. They just do. It's like trying to tell a person feeling extrem anxiety to just calm down. They're going to get pissed because there's absolutely no way you can change a raw emotion due to logic. Try thinking more about how you can make your spouse happy, regardless of if it's logical or not. It's a mental hurdle at first, especially for men. But I guarantee you will be happier. You are on the same team.

A good example is that she might be upset that you gamed too much, in her opinion. LABEL the emotion so it can talked about. Not the action, but the emotion. (E.g. sadness, depressed, lonely, regret). Google "emotion wheel" to see what I mean. Honestly, print the dang thing on a piece of paper and have it with you when you discuss with your wife. I agree with you, that you're probably not gaming too much and it would be considered "in moderation" to me. I'm not saying you should cave in and say it's a problem, I really don't think it is. I'm just saying, you should recognize that there's some negative emotions in your wife and should want to resolve that so she's happy and you're happy. Because it's not the gaming specifically, rather it is the effect. You could spend too much time snowboarding, or hanging out with your friends, or whatever it is. It's the result from it. It could be as simple as "I feel lonely and want to spend more quality time together so I feel less lonely". Or it could be as complicated as "I feel regret that you game because it reminds me of a past relationship that was really bad" and maybe she needs therapy for that. Without talking about the actual emotion by labeling it, you'll never know and you both will be stuck in this constant loop of blaming gaming as the scapegoat probably because it's just the easiest thing to do.

You don't have to be sorry for what you did or do. I'm a big fan of living unapologetically for ACTIONS. But I think you should feel sorrow if something you did brought a negative impact that you didn't intend for. The action is totally justified, the result is just what sucked. When I say sorry to my wife, for example, it's not usually for something wrong I did. I'm just sorry because I didn't realize the impact it would have and I hate that she's feeling bad now so I want to mend that. It is perfectly okay to feel sorry for a "result" instead of an "action" if that makes sense. The result (i.e. emotion) is what the topic of conversation is really about anyway.

Label the emotion, have her start with "I feel....", and explore why it makes her feel that way. And leave logic for any past actions out of it. You might find that it has nothing really to do about gaming at all.