HI Tammy
My husband left me 6 months after I was diagnosed. I had no idea it was coming, sucker punched. So I guess my advice is to be honest with him. Talk about your relationship and your future. If you are feeling uncertainty, it will only multiply in secret. Take some time out of the endless battles and do something fun, remember how strong you can make each other feel.
This is a very close subject for me, obviously, so I don't know how objective I am being. You seem very strong and beautiful. It has been aprox 4 years that i have been battling Workers Comp, so keep up the fight. Remember its not personal to them, although its certainly is personal to you.