now that you are splitting, he has even less motivation to work on himself
Actually, in a weird sort of way, I think just the opposite is true. I think the only hope for Mr. Mojo is to be in something of a relationship vacuum for a while with no female to please, to perform for, to live up to, or to disappoint. The question is whether he has the intestinal fortitude to go it alone for a while without either still looking to Mojo for emotional goodies or finding someone else to "take care of" him.
He probably should go on that reality program where they stick guys in a monastery for a while. And stay on a juice fast while he's there.
