“I believed I would find happiness only once I was true to myself. “
There you have it. It’s not about being true to others - it’s about him. His happiness. His belief. Nothing more than a variation on the theme of narcissism, and the research-based prognosis, BTW, for finding “happiness” through the changes he plans is quite, quite poor.
Hey, I know! How about being true to your wife and children?