I think he knows the way home if he decides that's what he wants. He has chosen his path. I don't think you need to make overtures. I think you can relieve pressure for him by being okay on your own, which is in effect what you are doing.

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