He went this morning. Things have been bad for years. I'm no saint - not at all - but I've been in therapy for a year working on my / our issues and there was a limit as to how much I could make things better on my own. He's made no effort and has continued to bully and stonewall me and I've had it. I gave him a choice this morning - marriage counselling or he leaves, and he left.
I'm mainly relieved. But I want to close my eyes and wake up in a year, when all the practicalities are over and I don't have to deal with this any more.