I’m so sorry your ex used a possible autism investigation against you in that way, sadly I’ve heard of people scapegoating others like this before. That wasn’t fair of her and it sounds like you’re better off without her. Not every woman would act like that.
I too wondered if you weren’t neurotypical in some way, sorry if I use the wrong words, I read your posts almost as you trying to make sense of the world, again sorry if I use the wrong words.