D - first, you need to accept that this process is going to take time. It took time for your marriage to fall apart, it will take time for it to be repaired.
It was fine that you set up boundaries to allow you to detach. You already know that there was some pressure in there. STOP DOING THAT.
Give W TIME to see your changes are permanent. Give yourself time to work on yourself. Be the best Dad you can be. Pray daily. For spiritual people, the absolute best advice is "Let go and let God."
Patience, brother. It is the best thing to have going for you.