He has to go through his period of growth and self-realization the same way you did. When you had your A, it probably devastated him. Heck we all felt that way. Just because you've "dealt" with it, doesn't mean that he has.
Is the OW a band-aid? Probably. But you mentioned that you went back to the OM several times. Once was bad enough, but to have it continue on is mind-numbing.
IMO, maybe you need to lay off the pressure. Live your life and show him that your changes are permanent. Continue to tell him where you are and what you're doing so that he starts trusting you. It's not going to happen overnight, but maybe over time enough goodwill will be built up that he will want to start trying.
M-43 W-40 2D - 9 and 5
Emotion, yet peace. Ignorance, yet knowledge. Passion, yet serenity. Chaos, yet harmony. Death, yet a new life.