My intuition is saying he is serious about working things out with his wife, but he’s also addicted to you. If things get rough with the wife, he will likely show back up knocking on your door. It feels like there is a good chance of him coming back around, but I get delays, 4 months maybe. He may also decide to replace you with a new fling, so you might want to be prepared for this. Could be a good time to reevaluate what you want and what you are willing to put up with romantically. I keep seeing him around mechanics or something technical, but I also see a management position around him. What kind of work does he do?