I'm sorry to read about your situation.
Do you have an agreement with your husband that you will not attend events with him where he and/or others will be drinking? Does he not invite you, or do you decline his invitations? Do you discuss your concerns with him? If so, do either of you make adjustments based on your concerns?
Based on your comments, it seems that your husband does a lot of things on his own that involve drinking. I'm wondering whether or not this may be another source of your anger. It's tough enough to be married to someone who drinks regularly, if not also alcoholically, but being left alone so much in any relationship can be a bitter pill to swallow.