Hugs to you losinghim. I have been on that rollercoaster. I am still here too. I don't try to stop him anymore. That is up to him. I try to live my life and enjoy the sober times with him. My AH drinks mostly at night by himself and passes out on the couch. I avoid going to parties with him when I can. I think the best thing I learned from by meetings and books was the detachment aspect even if it was the hardest.
I think the worst thing is his family who are in denial and have been his whole adult life. They wont talk about it or deal with it. I had one of his brothers tell me that "he wont drink himself to death, he's Irish, he has a strong constitution for this stuff" !!!!!
Love Yourself most of all and do for yourself first.