Oh geez, sorry, major phone fart!

If you are not DONE, don't think that you need to take on the burden of doing the work to get a D in the name of not being an avoider. Get your ducks in a row because your H's actions suggest he wants a D (not the canceling the mediation, you're right that we don't know his motivations). But you don't need to do the work FOR him. Make sense?