You may want to consider getting a custody agreement in place. If he wants D then he needs to see how that looks. You also should consider a consult with a lawyer. It was one of the best things I did in my own situation. And all of this has legalaties you need help on.
Remember two things:
When he wants to come back you will know. When he doesn't you'll be confused.
Also, you cannot nice him back! (We all fell into that trap.)
M(53), W(54),D(19) M-23, T-25 Bomb Drop - Dec.23, 2017 Ring and Piecing since March 2018