You really have taken on a lot and you have every right to be as frustrated as you are. You have your needs that need to be met just like he does, and you should get a chance to relax and unwind!
My situation's a little different, but like you, my OH and I can't really do a lot of normal couple things together, given that some responsible adult has to be with his dad at all times (hard to find a babysitter for a man in his 70's).
I'm very sorry OH is grumpy.
I would hope he would show a little more gratitude for the things you do for him despite his discomfort. :fingerscrossed: for a higher-spirited, more gracious OH for Jen tomorrow! :heartpump: