c, Sounds like your h is reliving his youth through his son. Yes, the revisiting is quite interesting and if you sit quietly and listen while he's talking to your son, you must might glimpse some of what he missed during those formative years. You may even be able to figure out what or who stunted his emotional growth during that time.
You sound good.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.
