Smarie....there is another factor that you may not have given much thought to....
Alcoholics who are as needy as he is, generally don't let too much time go by, without finding someone else who is willing to take over the caretaking role.
If you were to make yourself "on sick leave" (or some such excuse) more often, I predict that he would be able to pick up on someone else.....
If I remember, correctly, wasn't there some hint of this with some past condom incident? (I apologize if I got that memory wrong)....
I can't help but think that would be a blessing for you. At least, you would know that he was being taken care of. that would take a great worry off you mind....