Wasn't he moving to France last week? Did that fall through?
It almost sounds like he is going through OW withdrawl and your are potentially the new OW. But that is just a guess. Trying to figure out what is going on in their head is difficult at best.
You do get to decide if you want to reconcile but to me this is very fast. Has he done any of the work? I don't think so. There should be more than just talk. There should be actions. What actions have you seen?