If you do not mind another male opinion, I shall offer you mine. When growing up, guys were/are told to "act like a man"- meaning to stifle emotional displays. Guys, generally, are not verbal nor emotional creatures. Marital/Relationship workshops might help, but they could also backfire.
I would check with the local MS Association or Society about MS Family gatherings. In such a setting, your husband might be able to find the outlet he needs among other "men". Right now I think he is scared and unsure of what the future holds. My wife goes through this, especially when I am having my worst days.
Maybe your husband can get online with this board or other boards. Also, let him know that you are fine and you appreciate his support. Tell him that you do not have a fatal disease and when the day comes that you need to delegate chores, you will let him know. If you have your own pity party, he is sure to invite himself along at this time- something you do not need.
If your "ducks are in order", then he should feel more at ease. Guys are mostly fact and number driven. Leave the emotions aside and deal with facts. This will assure that your husband will not tune you out. Are their things you can do to make your home more livable? Disabled friendly lever doors, etc? These are home projects that might appeal to your husbands male spirit.
Be assured, I am keeping you in my prayers. Stay positive!!!