Blocking him is wise

There is really nothing he can do. Sometimes disgruntled spouses dragging it on purpose demanding more money (your honor I discovered my spouse has yet another retirement account and demand a chunk of it) or arguing over every little sentence in custody arrangements (Johnny will be picked up for Christmas every other year at 4pm instead of 3:30). But I don’t see what your husband could do in your situation. He might not show up but I think you could still get divorced regardless. There’s nothing to dispute