Posted earlier on someone elses post, but my XRAH used to email me when he was blitzed out of his mind.
More often then not, we talk about who we want to be, instead of who we really are. Especially the addicts.
He wants you to THINK he is not drinking. He wants you to feel exactly how you feel about that email. Like you had a problem and he never had one.
Whatever. This is one of the reasons it is important not to A dip. (A dip) After a period of no contact, dipping back into the chaos, and contacting them.
This is actually a really good thing. It confirms why you were no contact with him for awhile. It also confirms why its best not to contact him.
You fed his ego by sending him a message, stating how you missed your BFF basically, and he seized the opportunity to BOAST about how great he is. WTFE.
If he is really not drinking, odds are, he wouldn't have mentioned it at all.
I'm sorry you had to deal with this, or 2nd guess your opinions about his drinking in the first place.