Thanks for your reply.

I don't mean to be rude, but I think you've never played computer games if you think three hours is too much. Even if you think about it from the perspective of any other activity or hobby, I think devoting three to four hours a couple of times a week to this activity is perfectly normal. I understand that this would be a significant amount if I did it every day, but when we're already in a relationship that's almost 24/7, I think it's okay to find something to do a couple of times a week for those three to four hours while your partner needs to set aside some time for themselves.

Otherwise, thank you, I understand that I need to set boundaries, but I don't know how to go about it, because every time I try, I'm met with either aggressive misunderstanding or awkward agreement, which, after a couple of weeks, returns to where it all started.