I stopped by this morning to make sure he was ok. I had to do it. Very little conversation, a hug, then goodbye. I know I can't control his drinking, but I will look in on him now and then to make sure he's still breathing. I don't believe that someone can make life or death choices under the influence of possibly lethal amounts of alcohol.
Now that I'm away from active drinking, I'm not angry anymore. I'm just going to treat him like any other sick person.