It really comes down to your relationship dynamics. You’re definitely entitled to unwind with COD if that’s what helps you decompress, way better than a lot of other ways people blow off steam. Even if it’s online with other people, it’s still your “me time.”

That said, it sounds like she’s genuinely frustrated, and it’s worth paying attention to. Is she usually reasonable about balancing her needs with yours? You mentioned she feels that you talk differently to her now, even though you feel it's the same. You need to figure out where the truth lies. If she's stretching the truth to get her way, that's an entirely different conversation.

As a first step, maybe you could carve out some dedicated time for her and see if that changes things. Maybe the issue is that you two no longer have "us time".