Hello, SonoranPrincess. I haven't had the pleasure of engaging with you before, so welcome [a month belated] and good to meet you.
I have been fortunate, in that I have a family that is supportive of my Asperger's in just the ways I need them to be. I'm 58 and my parents are deceased, but I have them to thank for the way I'm treated now by my siblings and their clans, because they set the tone early on that my eccentricities aren't problems that need fixing, or abnormalities that need normalising. I can empathise, however, with what you've written. I know how frustrated
I would be, if someone I loved, and who loved me, was stuck in a well-intentioned but ableist mindset.
You didn't ask for recommendations, but have you looked into finding resources here that can better explain to him what you cannot? He sounds like a caring enough bloke to give you the respect of taking on a little hand-selected reading. Whether he can change old habits at this point is a question, and certainly his efforts would require your patience.
A last thought, as you said something that caught my eye:
"I know he is just trying to improve my quality of life...". Forgive me if you have already tried this, but perhaps that thought would be a good foundation for a gentle discussion. He may benefit from hearing you explain what "quality of life" means for you, with your differing neurology...that it doesn't include many of the things that NTs want and need, such as shopping trips and parties. You might explain how forcing yourself to do those things
detracts from your experience of life. Framed that way, he might understand better. It sounds like he does care that you be happy. He just doesn't seem to grasp what "happy" is for you.
I wish you peace with your situation.