Hi Jenny, Welcome to SR!
Boundaries with a loved one who is battling addiction do take some time to learn. Perhaps think about what sort of behavior is unacceptable around you. Be prepared, however, to follow through with the consequence if your boundary is crossed. If you don't maintain your own boundaries, then they will be disregarded again and again.
Is it acceptable for him to be drunk around you?
Have you been able to maintain separate finances in case he spends all your combined money on drinking?
You will find a lot of great information within the "stickies" at the top of each forum. Keep reading, keep posting. There are a lot of folks here who understand exactly what you are experiencing.
Hugs, HG