In my experience, abusive behavior is more progressive than alcoholism. My ex suffered from both. He also used to cry suicide, until he finally went through with it (20 years later, but he did it). He was ill. Alcoholic and abusive and had his own problems....unaddressed.
You can only control you. Seek help for detoxing, which can be through your doctor, not husband. Maybe work the steps in AA or find a program of recovery you can utilize and do it well so you can stay stopped.
Seek help through your local Domestic Abuse Center, most states have these readily available to anyone.
Once you stay stopped and start thinking clearly, you will know what you need to do.
No more excuses for you or for him; you can start living life without drinking!!