Call the police and get some enforced separation until you get to rehab. Your drinking does NOT give him a free pass to abuse you. Please accept that you are a child of God and, with His help, you will be free. I will pray for you tonight.
I agree 100% with the above. In fact, there's a 1-800 number for a nationwide hotline for domestic violence.
I am praying for you, too. I looked it up: 800-799-SAFE (7233). open 24/7
It is super hard to call police, especially if you feel like it's all your fault. It isn't. He has a choice in how he decides to behave, and if he can't stand being around you because of your drinking/behaviors, he can always step outside and go for a very long walk, or go chop some wood or something.
Anyway, if calling the police is too difficult emotionally right now, you can call that hotline number.
I'm not a drinker...only very occasionally and only a couple, that's it. But I am a domestic violence survivor. Being battered for any reason isn't worth the tears you end up shedding. And you can't allow your emotions to overrule your own good sense.
I'm glad you're going to rehab, it's a good start to a life time of changes for the better.