Best thing he could have done for you. Now you can move on from your drunken, manipulative, and lying husband, get the help you need for your codependency and hopefully then be wise enough to pick a good man that doesn't need fixing.
Sorry, you're hurting, sorry you thought you could handle this on your own instead of getting help from the good folks at Alanon and I'm sorry that you now think him leaving for good is something that you should be mourning.
In time and what you do with your time, by honing your personal boundaries and by getting help at alanon, you will in no time at all be very grateful that he's now someone's else's problem.
Take pride in the fact that you didn't just cave and go back to him. He didn't get any help for his reasons for drinking to the point of alcoholism. Just because he quit drinking (so far) doesn't mean that your life with him would suddenly be happy and perfect... it would never even be happy unless he works on what ails him.
Google Alanon for a meeting near you and start going as soon as you're over the initial shock of realizing he is the asshole that he's always been... even when sober.
“The willingness to accept responsibility for one’s own life is the source from which self-respect springs.” ~Joan Didion