I recommend going dark -- he obviously wants/needs space and time so give it to him. To the degree you can, ask him for nothing, even where S is concerned. Just pretend he's always working so he's not an option.
Read over Hopeful's situation. H moved out and went dark and she got pretty convinced he was gone for good. When she really stopped pursuing, he started coming around. One of the best things I read was that he called her when she was out with friends and there was music and good times in the background. That's what you want him to hear -- you having fun without him.
I know this is hard, but close up the hatches and go dark. Remember it is just for now and not forever
Accuray
Married 18, Together 20, Now Divorced M: 48, W: 50, D: 18, S: 16, D: 12 Bomb Dropped (EA, D): 7/13/11 Start Reconcile: 8/15/11 Bomb Dropped (EA, D): 5/1/2014 (Divorced) In a New Relationship: 3/2015