My spouse and I have been married for a very long time. He was a type A+++ and I rated A. We met at college and neither of us are a brick. We learned short on but AFTER we married: I'm a night owl, he's a morning person. We could pass as one went to bed and one got up-crazy college hours we didn't know until about four months after we're married. We've both had professional jobs. We have both had turns at being the one 'bringing home the loaf'. Major turning points were: I can't read his mind nor am I going to try to, (the bird) is a complete reply. [thank a counselor I had for that one]. An hour worked is an hour worked, whether it is writing code or doing laundry. It's still work. It still counts. We've both had depression, I was on antidepressants and tranquilizers 3 times, and just tranquilizers, once. He's had codependency counseling. THEN, he became disabled and that took a long time for both of us to adjust to.
Things we sorted out: you can't speak for the other person on scheduling or agreeing to anything. If I say I will bring pickup and help you move, you get me and the pickup. Not me, HIM, and the pickup. Etc. We have his tools, my tools, and our tools. You leave your tool out it's your problem if it rusts. Joint tools, whoever took it out or used it has to put it back or clean up after. You can freely borrow someone else's tool but they might come along attached to it (do the deed with it, and take their tool back).
Projects, again, HIS, MINE, ours. Your project, you're running it. The other will help if asked and it might have to be scheduled when, but. We also were fans of a show called Junkyard Wars, and one team was a bunch of engineers-they had instituted a 'two brain' rule. Some things were required you bring another person in. This cut down on errors that were easily spotted by someone else. It makes it better to invoke that rule rather than let the other one really mess up, or it's an easy way to ask a question if you're stumped with something. (saves the old pride bit). We often do our own projects in the same area at the same time... safety reasons and also if you need a hand for a moment. He has his interests and I have mine, and we can spend time on them without issues.
Budget, I chase that. Things that need doing get discussed, wants and needs, and things scheduled and budget allocated. If there's a shortfall we ride it out, if we have the rare extra we discuss it. Amazon Wishlists did a LOT on what's needed and wanted being written down somewhere so it can be seen AND remembered. Not all of it can be gotten at once but some things have equal merit.
He still gets easily upset and frustrated and needs naps. It's okay, most of the time he can go do so.
He will ask what is needed of him and some days or times it's a definite no, otherwise it's mentioned. If we go on a trip, I will make lists of what needs doing. The IMPORTANT PART. I make the lists and if he finishes his list he CAN sit down, done. If he's tired or dizzy he can take breaks, just that he has his list to finish. What's left of his A type, he'll get the list done.
We still have moments, 110 decibel discussions and fantasies of hiding the other one in the
compost.
Recently on gardening work, I had to do what needed doing. He asked what he could do, and the grass really did need murdering so I sent him to fix the lawn tractor tire and go mow. It needed doing, he had the decision made for him on what would be useful, and it was work that needed doing. Do I like having to be schedule central? No, but it is the way we made life easier.
Two other things: 'Why Are You Crying?' I Don't Know is a legitimate answer.
The world is not black and white, there is a LOT of GREY as well. He learned to unwind his engineer mindset a bit. If I could learn the amount of math I did, he could learn to cut some slack.
(and he can sit at the pattern counter in the fabric store, just like I can walk into the part store--I'm probably the one buying the part) [walking through the homecenter once, with a flat with a nice selection of tools on it, a fellow following his wife pushing a cart, he looks and drools as I pass, then he looks surprised to see I'm alone and he stopped to say 'where's your husband', I said 'at home' and his wife gave me a murderous look. At a Harbor Freight, we're shopping, and I'm the one with cart and flyer with the circled stuff and filling cart until I ran out of $. Fellow with wife with a drillpress box loaded in cart, offered to trade drillpress and wife for me. She didn't think much of that, I said we had two already (truth) and we talked nicely for a few. Bet that was an icy trip home for him...]
It won't work for everyone. This took the two of us decades. Once you get married, the adventure is just started. (edit, muffed some spelling)