If you continue to do as you have been, it will work. You have to give it plenty of time to do so. It's not something that will happen over the course of a day, a week or even a month. Keep in mind, if you pushed and/or pursed, you will definitely push him closer to the OW. Only contact him if it's an absolute emergency that you can't handle or about your child. Leave him out there to figure things out.
Continue as you have been...have faith...it will work.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.
