Just will not compromise one eensy teensy bit!

My partner just refuses to compromise ever.  It's only ever his way or the highway.  It is driving me nuts.

Here's a great example:

He insists on fixing these vintage keyboards he has in the living room of our house despite the fact that he has a dedicated workshop in which to do so.  I soon realized that I was not going to get my way at all on this because when he wants to do something, that's it, he's gonna do it come hell or high water.  So, appealing to his higher nature and figuring he might realize how stubborn and inconsiderate he is generally, wondered if he might be willing to compromise so, I asked him to at least put his tools away when he was done.  He seemed to kind of agree to this...for a while.  After scouring our entire kitchen from ceiling to floor tonight, I came in to find him lounging on the couch watching a movie with his tools out and scattered every where.  I asked him once nicely if he wouldn't mind putting them away and when he said 'no', I assumed he meant "no, he didn't mind'.  Apparently what he meant was 'no' he won't put them away.   Then I demanded that he put them away to which he refused because he 'likes them out'.  I can't take it.  Can't he already see what a compromise it is for me to even put up with him turning our beautiful living room into a workshop 'just because"?!?  And now he won't even put his tools away which I thought was part of an agreement.  It's so unbelievably ridiculous.  Why it so hard for some men with ADHD to compromise even a teensy bit when everyone around them is moving heavens and earth for them to be happy????