SH,
Physical Abuse, mental abuse,cheating and all the other stuff addicts do, could be or couldn't be, because of their drinking. Does it really matter. Do we forgive them for this because they are "addicts"? At what point in our life do we deserve respect and dignity. Your husband is disrespecting you, that is humiliating and degrading. You are worth so much more then that. You don't need to be making excuses for him that he is a "drunk".
Seek support and work on you, as that is all you have control of. Once you have enough respect for yourself , you will do what you need to do to move forward in life. Hugs to you!!