I'm sorry it had to come to this Fighter, but your screen name is rather fitting considering the strength and honesty you've shown in this situation. You gave the marriage another shot but you were honest enough to admit that it really wasn't working for you. I know it's so hard to let the other person down, but in a very real sense, he'd been letting you down for a long time, to the point where you felt alone in your partnership. The outcome of this situation--your decision to leave permanently, is one of the consequences of his past behaviour.
Please take care of yourself and keep going to Al-Anon. I also found individual counselling very useful for me.
*hugs* and officially
to SR.