Please dont be sorry about being a downer. It sounds tough and I'm glad you posted. It's really hard sharing space with someone behaving like your husband is just now......hungover after the booze and the monster nap perhaps?!
I'm on citalopram also. I find the key thing for me is just calming down. Breathing and making myself calm down. A quick meditation or some other time out might help. A bath? Or a lay down?
Please don't drink. You are doing amazingly well and it sounds like its husband that has the issue just now. Maybe tomorrow try and talk to him and resolve some of the things you've talked about in your post. But just now please look after yourself and post away if you need a rant or some support. Gabe x