This has been a normal conversation for us for some time now. Not much lately though. He is house hunting, and I'll say something like "I hope you get it" if he puts an offer down on property. He'll say "Oh quit (jokingly), you know you don't mean it". I just blow that off and change the subject.
The thing is, I really do hope he finds something, and gets settled in a new place. A year ago, this would have made me panic, thinking of him moving on without me. But I can honestly say now that I want him happy and settled. I suppose its that loving detachment I have worked for...
Hopefully someday, he'll realize I want him happy, for himself and for the girls, as he'll be a better father.