I think that he thinks that be being back, the air is cleared! If you want more than that, you are goingt to have to push it. And you might not really like the result. Instead of getting the closure you are after it might make him think again of all the "reasons" he left in the first place. And that might not be a good thing.
Do you want to "fix" the old R, or build a new one? You might have to let go of the past.
