People only have as much power/control over us as we give them. The fact that he felt this was was "his stuff" 100%. (I know I'm preaching to the choir, just validating!)
People often think our relationship issues are about the relationship itself, but they're usually not. They're more often about our individual issues that play out in the relationship until we heal them.
It's good that you don't regret your time with this person, and chose instead to find the lessons and healing it could offer.
Thank you for sharing this and for choosing HHH to publish.