Sorry you are going through this but it sounds like my alcoholic husband. The son and grandson of raging alcoholics.
Picking fights for excuses to get out of the house. Even when there is no fight, getting anxious and running out the door at the drop of a hat. Turning on you if you mention your concerns about alcohol. Even when physically present is not all there. Zombified. Camping by himself. My husband did that.
Finding alcohol bottles around the house. It is an issue from what I see. I am dealing with this myself. I have no words to say other than you are not alone. Stick around for support. This is a good place.