I wouldn't want you to chase after D, but is it realistic to have no contact with him after today? or are you just going to end up feeling like you've failed yourself if you end up having to call him?
I know that there is a lot of symbolism in leaving the past behind, but don't feel like you have to figure out all the rules for that at once.
Just my .02 but feel free to make the rules up as you go along. You can bury stuff in the yard, but the trash also works fine too if you don't get that done before you move.
You do what is right for you so that you can feel "free." I know that past few years have been hard but until you let it go in your mind you could still be in bondage to whatever is buried in the yard.
you need a hug, so I am sending it on downstate, Pam