My husband of 38 years (we retired 3 years ago too) has always done the finances, with my contribution considerably less as I didn’t have career progression opportunities as he did -however, I had similar hours after children were at school full time. We sound exactly like OP and partner except he accuses me of being lazy (unless I’m knitting or doing housework)
He does go mountaineering which I don’t, so it’s possible to
do different activities without falling out. Before lockdown we could go to cinema, visit family, go out for a meal. Now we go to Tesco together and the occasional walk but it can’t be helped, as Redhead says, it’s hard time for us all. Rubicorn, have a frank discussion with her and with love and respect for each other, you’ll cope.