I'm sorry about the MRI and I do hope that everything goes well.

As for your h, he is paddling against the tide and he realizes that he's not able to move forward or backward. Such a shame for him to think that calling it quits will make things better. Divorcing you will not fix his issues, but he will have to figure that one out.

I'm very sorry about the timing and how he's going about all of this.

Sit quietly, the answers will reveal themselves when you least expect them to.
The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.