Hi there
I already mentioned Maxine Asten in the other thread,
there is also a book called Aspergers Syndrome and long term relationships by Ashley Stanford.
And there is a free Open University short course on Autism.
We are also in our 40s with 3 children, and the eldest also has it we are sure, but she’s never been diagnosed. It became very apparent when she started uni last year. Up to then we took it to be being an introvert, geeky, socially a bit naive.
Since reading up on it because of my DH we are sure she is on the spectrum too. She has read a few books about it and agrees.
What I would strongly suggest to you is that you look after your own needs.
I tend to think for everyone in this household, planning, the whole mental load, it’s exhausting.
My DH can’t do two things at once and if I talk to him while he’s doing something it won’t register.
He’s just put another dent in the car because someone talked to him while he was driving.
We had a really rough patch last year and I was in therapy. The therapist then pointed towards Aspergers, after what I told him and he was right. It probably saved our marriage.
I wouldn’t recommend going to couple therapy with your DP, as most therapists have no experience with autism and it can be a disaster.
My DH refused anyway and the books I read afterwards all agreed it can do more harm than good, unless you find a specialised therapist.
All the best!