Here's my experience. Your children's issues didn't come out of the blue.
If you want to see someone who's neurodivergent, look at your husband.
The more time I spent with my children, the more time I have with my husband, and thinking about how he behaves, and how I behave, the more I realise they're our children, and we are definitely their parents.
If you reframe your husband's behaviours in this context, can you see that he is as likely to engage consistently, as you are to catch a rainbow?
It's been a long haul for me, and I'm not done trying to find my way through a very similar situation, but it definitely helps my day to day resentment that used to burn fiercely.
I'm sad that this probably won't change enough for me to have a "real" life, rather than just a facilitator for my children and husband, and I feel huge shame that I feel anger still, for not handling it better, for so many things.
My dh is an extremely "successful" (by neurotypical standards) but it is ENTIRELY based on anxiety, masking, and compliance. You wouldn't see it. No one sees it. Except me. And it's taken 15 years for me to realise.
His obliviousness is not malicious.
He literally can't hold information that does not either involve life and death (barely reacts if one of us is sick, extremely concerned if we're in hospital), or intense duty (work, being the breadwinner), or an intense interest (fortunately those are starting to coincide with the kids, but that's luck).
His inability to discuss problems is shut down through fear.
His failure to engage with us consistently and meaningfully is because he knows we're there, and will be there at any given point in the future when he thinks to check in.
We are lucky that he realises these are not easy behaviours to live with, and he tries really hard. Which is exhausting for him.
I used to assume it was the sheer hard work, that caused so many families with neurodiverse children break up. But I think it's because the people who have their own exhausting fight to get through everyday, are the least equipped to deal with it in their own children. Especially when it's more challenging, and can't just be worked around by forcing the child into training, manners, rules etc. Now we know how damaging this is, we can't unknow it.
The world is full of adults who are now realising they "seem normal" because they grew up doing as they were told, and masking and being compliant until yet learnt how to pass.
These adults are now crumbling under the weight of all the pretending.
Sorry, derail, but that's what I see.