Hmmm... Nic lives are never too separate to reconcile. Frankly, moving on and going about your business makes you more interesting and perhaps draws him closer (pulls) him to you.
I certainly would proceed with caution. His life is in complete turmoil - ie... no job. He in following the path of least resistance may come home for that soft place to land to figure things out. That in my opinion might seem tempting to you at first but once he is back on his feet I feel he may skedaddle again. Don't let him come home unless he has all his p's and q's lined up!!!!
But, what you are doing right is keeping your interactions positive!!!! Huge pats on the back for that. You are not grilling him... you are letting him come to you. Keep working on setting up some decent boundaries. Make sure he knows he needs to check in with you about when a good time to come is ---- don't give him the feeling that you drop everything and cater to his whims to show up. At the same time make sure you give plenty of access to your D. I know... that's a fine line isn't it?
Reconciliation can still happen Nic, though it will be along time off I feel. But, remember my story I share with you. You still have some forward motion to do... its so completely true what they say... they don't come back until you have moved on. Keep gathering your strength. Reconciliations happen when YOU get to a place that you don't hope for it anymore. Remember psysara... :-) You are doing fantastic... you have moved on from baby steps to gazelle strides!!!