"I wasn't drinking because I was an alcoholic, I was drinking because of YOU"
Typical response from an alcoholic. Don't be manipulated by him - he's just trying to get you one last time, even as the door hits him in the rear on the way out. As others have said, it's a bunch of BS.
You should start working on yourself now, and stop reading those e-mails. Trash 'em, or put them away in a divorce file or whatever. You should start moving on, if you can. This means starting to focus on yourself, and your own happiness, not his. Good luck.