Hi. I just wanted to comment that you are not alone in the world!!
I too struggle with a husband that barely tolerates our trips to disney.
By your description of him, it looks like both our husbands share some traits.
He also travels a lot for work and when he is home he hardly ever just sit back and relax as he is either playing tennis or doing something around the house.
He doesn't do crowds or lines very well, neither my two girls 6 and 4, which doesn't help, but to be honest, I don't like them either.
After our trip last summer, we decided never again we will do Orlando that time of the year.
Fortunate for us, we live in south florida at a mere 3 1/2 hour drive to the world and are DVC members. Unfortunately, with my daugther starting first grade this year we are not going to be able to do full weeks out of season anymore (we LOVE to go in January when is cool and not so crowded), so we are picking long weekends in October and January and see how it goes from there.
I wish this will help with DH (and mine) avertion to crowds.
Other thing they share is the healthy food thing, ordering salads everywhere, with dressing on the side. I wish I had the will to do it, I just can do it when I'm on vacation. He, on the other hand will hit the gym during our down time.
Although DH appreciates that I made all the plans and reservations, he will always find a way to drag me out of WDW property to try to get away from all "the crazy people making reservations 6 months in advance". Last time he tooks us out to PF Chang where, guess what? we had to wait at least 30 min to be seated, even with a call ahead.

I can't wait the time when my DDs are old enough that I can go alone with the two of them to the parks and enjoy ourselves, leaving DH to do gym,
walmart or whatever he wants to do in the resort or out of WDW property.

Thanks for sharing your not so magical experience. When I go to WDW and don't have much of a good time because of the attitude of my party, I tend to think that it only happens to me that I would actually enjoy something that the rest of my family doesn't and I'm wasting my time trying to book new things for us to try. Now I know I'm not alone!!