I've been where you are now.
And I do agree with everyone here - it's textbook that it starts when you are vulnerable (pregnancy, financial dependency or illness) and it never gets better.
I also know that right now you feel he wasn't violent towards you - and he wasn't - this time. In my case, it was usually house stuff that got smashed, but funnily enough never his prized possessions, only mine. And that was enough for him for a while, until it wasn't. Then he began on me. Mostly verbal, but occasionally physical. I didn't even leave when he smashed my car, or strangled me - but I did leave when I had a flash of a future of him being abusive in front of a toddler - and it was then that I realised that while I desperately wanted children, this was not the man to father them.
But I remember that confusion, and thinking it was out of character, thinking that he meant it when he said he would change. How good it was when it was good. So I know that from your posts you are leaning towards staying, because I was like that too. And I will not judge you.
What I will tell you though is that by staying, you are signalling to him that this behaviour is acceptable. That you forgive it. For you, it's giving him a last chance, for him, it's permission for the next time- even if he doesn't even realise it yet. For him the line's been crossed now and that was the hardest bit. After that, being violent gets easier.
You are in the remorse cycle now. He will sob his heart out. He will promise you the moon. In this case, never drinking again. Well, in a few weeks you'll see if he meant that. It'll be Christmas. You'll be out with friends and it would be rude to refuse a pint. That you are being a nag. He never promised you anything of the sort anyway. You are trying to be controlling and he'll probably say some horrible stuff to his friends about you trying to control him. Remember this - a truly remorseful and horrified man will turn down that drink and every one after. So in a few weeks he'll probably revert to as if it never happened, and you'll think it's in the past but it's not.
If you feel you need to give him the chance, I get that. With the wisdom of hindsight we can all tell you you are wasting your time, but many of us did exactly what you feel you need to do now. So all I can say is that we are here for you, whatever happens. Hope for the best, but plan for the worst - Think about your red line and what that is, and have plan to leave the instant that happens. Review what you need to review for a possibility of fleeing and of a life away from him in terms of your joint finances.