@MiddleAgedMary
OP - you are at an age when most women go through menopause, and many feel like they need to dramatically change their lives and be themselves and free. It’s a very common theme.
I guess - after raising kids, and putting ourselves last, we go through our own version of midlife crisis.
Have seen a few friends blowing up their OK, not great marriages. With various results, I might say.
I am not pro staying in an unhappy marriage. But I think of it pragmatically. Especially in our age group, and knowing that a lot of our drive for change is driven hormonally.
Non relationship or partner is perfect. And meeting a better partner at 55+ is extremely difficult. My divorced friends (aged from 45+) all but given up - as men that are ‘available’ are mostly damaged in some ways: or just want to enjoy life and are not looking to be in the sort of supportive and committed relationship women are looking for.
So, personally - in your place - I’d weigh (and continue weighing) the good and the bad in the relationship. As it does seem like you have a lot that is good and working.
I’d also continue to assert my needs and boundaries - and do the things I like, as you seem to have started doing already.
And yes - it does seem like your H is neurodiverse - so I’d try to accept that some of his behaviours are that, rather than being meant to hurt you. (I’d completely ignore the ‘2 pieces of toilet paper’ sort of comments, as its clearly one of those)
To me - its completely normal to NOT expect all of our needs to be met within the marriage - so spending time with friends, and having own hobbies and support networks in friends is NOT an indication of a bad marriage, but a healthy one.
Marriage dynamics inevitably change once kids leave and people age. Takes time to find that new dynamics.
You could wait and see if that transition happens, and if the two of you can adjust to it.
And if not - you can leave.
But if you don't want to bother - you can leave now. But you need to be leaving for YOU, and not because you think you will meet a better partner. That, in all likelihood will not happen, or at least, you can not count on it.
Everybody I know who left thinking the grass is greener have only been frustrated and disappointed.
Leave if you are truly OK with potentially being on your own in your old age.