You've done a lot of work over the past month. I think he will see a new person when he meets with you. When he does, be cool. Dont come across as too eager to "make it work." Make HIM do the work. Show him that you are in an awesome place in your life and what he'll be missing out on if he chooses not to come back.
Me: 48 y/o W: 47 y/o Together: > 20 yrs BD: Dec '15, then S 2nd BD: Mar '16, then I filed for D April '16: started piecing