firebolt.....he was drunk. I know that you know.....there is no way to have a rational conversation with someone who is drunk.
He probably is sad. In most all breakups...unless it is a simultaneously mutual agreement....someone is always sad. I commend you for not trying to rub it in for him. It shows basic compassion.
Obviously, he is still up to his knees in denial....and, of course, trying to protect his drinking. Expecting him to see the situation objectively and take responsibility for his part is just to much to expect from a drinking alcoholic. Their disease has the upper hand.
I think you are handling a difficult situation as well as can be expected.
dandylion