Sleeper2019,
You have been through a lot of up and downs and it's frustrating. Just know he has to want to change. From the sounds of all your past post he doesn't want to change and is doing just enough for you to perceive there is a change at times. That's what Alcoholics need us to feel. That need to keep us hooked. All it is is manipulation. Unless he is seeking help of some type he will not be able to do it on his own. Alcohol is too strong of a need for him.
Just know you need to look after yourself and not focus on him. I know it's hard when you love someone. You need to come first. Find an AL-Anon group if you can. It has helped me and I always feel better after i have been to one. Have a great day.