Oh I’m sorry to hear this. Sounds as though he needs a hospital detoxification which obviously needs to be done in a clinical setting so try not to beat yourself up about the services. It’s safer and set up to save lives.
I think the key is for him to sustain abstinence when he is discharged otherwise the cycle just continues. I know how scary it is and I’m sad that you’ve had to go through all this. It’s not easy to live with and I’m sure this is not what you wanted in a relationship. You deserve so much better and so does your family.
Keep going back to Al Anon. Can even give you some details of meetings if you like. You’re very brave to keep chatting here and sharing what you’re going thru.