It's hard to say it or believe it but him moving out is probably a good thing. I think he needs to be out of here to process and to de-stress/relax. We're both walking on eggshells around here and while I'm giving up opportunities to DB in person - it wasn't really effective when he was avoiding the house at all costs and unable to function.
I don't see how an air mattress and some clothes in an unfurnished expensive apartment helps but hopefully it does.
