3 months after BD, the roller coaster ride hurts

[devotee]

Thought we were doing great. H went into a weird head space this morning. I kinda just shrugged it off and tried to remain positive and friendly. He gave me a ride to work and picked me up from work as well. I had to DJ a cd release party for a friend tonight, H even created a beautiful remix for them for one of their songs. He refused to go because he didn't want to see people from our scene. He dropped me off. Then about a half hour later I check in by texting him and telling him about the stage and my gear setup. He responds he's going to drink. I ask him to please not drink, he's an alcoholic and hasn't had a drink since March, he should be proud of his amazing progress. He responds he deserves it. I decide to just let it be. About a half hour later he texts me telling me he can't help me carry my gear in tonight and that I should sleep on the couch tonight. I respond no, I will be sleeping in the bed. He responds he needs his space, please let hi have the bed alone tonight. I respond that I've been on my feet all day and night, and will be standing working all day tomorrow too and I need a full nights sleep in the bedroom. He responded "You wouldn't sleep in the same bed with me for 3 years, save the indignation for your friends. I lived with you!!" I responded "where is this coming from?? We have been doing so good. Please stop talking to me like this when you're drunk. I'm on stage trying to be happy for my friends new album." He hasn't replied back.
He destroyed my night. I took a Xanax because I started to cry on stage. So much progress washed away with him having a drink. I don't know what triggered it. Yes I shouldn't worry about him and instead focus on myself but it's a huge blow after so many good weeks. A huge sucker punch to my gut.