So you knowingly got engaged to and moved in with an alcoholic, and then started drinking more because of it, potentially developing your own drinking problem, possibly worse than his? Some times the problems in our lives are caused by our own poor judgement. He's probably right, and you both need to get some control over your drinking. Hopefully you can support each other rather than just undermining each other, but either way, you need to get your life in order, and seriously consider if you want to marry an alcoholic if he's not willing to get his in order too.

Did no one tell you that you can say no to a drink?

For your own sake, I really think you should talk about this between the two of you.

Leave him not because he's an alcoholic, but because he's a hypocrite! There's no rehab for hypocrisy.

you both deserve it

Assuming you're old enough to drink, you're an adult and can make adult decisions... like saying no when he offers you alcohol. Just because he offers you some, it doesn't mean you HAVE to take it. Take control of your own life and responsibility for your own actions. You drank it because you opened your mouth and drank it. He didn't shove it down your throat forcefully. You both have a problem now and both need help... if an alcoholic calls you an alcoholic... maybe... you're an alcoholic... just saying...