That must be hard to watch. It surely was for me. And, I know how my family feels from having to watch me. It's hard to understand why someone would keep going back to alcohol after serious medical conditions now as someone sober but then I remember when I was stuck in it. It was such a weird out of body experience at times. Do you get upset with him or just let him do his thing? Maybe a little of both. I am sorry you have to watch him in pain.