In my perspective, this is a combination of all of the factors you listed. If you are in close quarters for 5 days, things start getting annoying and people start getting too comfortable or the opposite too anxious. If hes getting drunk his judgement is impairing, he's going to argue and say things that are going to trigger you. Yes, your triggers are influencing the situation. None of this is bad, it's just food for thought. Consider what's going on, do I need to change things up? Get out of the house. Spend some time apart (like go out alone)? Couples get traditional, and people tend to believe that they NEED to be together sometimes. It's OK to go out and do stuff for yourself to relieve that stress. Maybe he should cut down on his drinking, but be VERY careful how you approach that. If that's become a hard habit and he doesn't want to quit, he's not going to. Trust me. But that may be something you need if it triggers you. Think about it for some time and the answers will come to you. Trust in yourself.