Well, congratulations to him on his sobriety! No drinking is the very best thing he can do for his liver. I know that most people do not fit neatly into a single category and may have elements of different stages. It's just a general guideline. Is he eating much? If he doesn't eat, he will grow weaker and weaker. Fresh fruits and veggies, with some fish and chicken is the best. You can also give him supplements if you aren't already.
It really sounds like you need some help. Are there any relatives, friends, or neighbors who might be able to stay with him a couple of hours once or twice a week so that you can get out and have some "me time?" If not, still try to sneak some time for yourself. It's really important. And please don't feel guilty for the feelings you have. They are entirely normal.
Hugs,
Connie