Here's a little further thinking that I would like to get down on paper (so to speak).
H expressed a desire to go back to simpler, happier times. Meaning, before we met and began to build a life together with all its inherent responsibilities and commitments. He said he was happiest at age 18 when life was about video games, drifting cars, and partying with the boys. It certainly seems that that's his current mental age based on his actions and activities.
I recall now a comment he made years ago about his parents abandoning him as soon as he finished high school. The impression I got, or my interpretation of his comment, was that his high school graduation was the only thing keeping his parents from retiring early and 'living their best life'. Indeed, as soon as he graduated and moved out, they immediately sold the family home, bought a catamaran, and went to sail the high seas. Only returning every six months or so and not keeping in touch much with either of their children.
I do wonder if he felt deep down that his parents were impatient with him, the youngest child, for holding them back from their dreams. I wonder if he felt unsupported during the big life transition of finishing school, moving out, and starting uni. I wonder if he began to withhold information about his life from them in retaliation for leaving. He routinely ignores his mother's calls and messages to this day. It is very foreign to me, a girl who has a close and honest relationship with my own mother. And just disrespectful, as well.
He never expanded on the abandonment comment, or even remembered saying it in later years. But it has always stuck with me.