Good day Sue, I'm sorry to hear about the ring. I know its hard to accept and keep a PMA about it. I reacted poorly when my W took hers off. I took it as a sign she no longer want to work on M, and she didn't deny it either. I had made such a big stink about her not wearing her ring that even today, when she takes it off because her fingers swell, she seeks me out to apoligize for taking them off ... even though I have told it is unnecessary for her to do so.
Sue, you did a fine job of "breaking the ice". Let him absorb it for a while and try to come up with ways to encourage him to open up more about what he feels he needs to straighten out. Related to that, you may want to ask, "What is he focusing on?" "What does he feel he needs to make better?" "What does he feel are good parts?", etc...
Try to shift the conversation to where you are doing less talking and he is doing more.
BTW, what was his mood when he left? How did he seem to respond about having the discusion?