Better than books, I find, are movies and tv shows- especially subtitled foreign ones, as it's much harder to connect the words to the facial expressions. It really makes you work to figure out what motivates people when you have to dual-process. If he's not a big fan of subtitled movies, watching any decent drama, thriller, or mystery show/movie with an in-tune neurotypical can also help you sort out all the meanings, but the aspie needs to be open to admitting that they don't understand what's going on- something most of us have actively worked to avoid doing.
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If you can find a therapist with experience in working with adult aspies, I would really push you in that direction. If you can get DH to agree to go to one session, hopefully the therapist can speak his language and explain why it's so very important for him to learn some new coping skills.
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One of my pet interests is child development, so I'm very aware of how kids are impacted by their upbringing, and am aware of my role as a mother. Getting him to see the impact his parenting will have on the kids long-term, I think, is your first hurdle. Once he gets it, it might be easier for him to get help. It's a tall hurdle, though. People, NT and AS, don't like thinking they're bad at something, especially not parenting. I wish I had more advice, but I don't know what kind of person your DH is like, and you know what they say- if you've met one person with Asperger's, you've met one person with Asperger's.
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Good luck to you!