Hmm. Tough one.
Yeah, relationships are complicated bc PEOPLE are generally pretty complicated; put 2 people, who each have their own expectations, issues, and quirks, into any dynamic & stir well...Almost anything can /will happen!

Communication is definitely a sticking point for lots of relationships, IME. His methods of speaking/not speaking are frustrating you no end, sounds like -- do you have any idea just how he is proposing to "Work On" this issue? Am trying to imagine Autism-spectrum Plus ADHD and wow, lol.

You can wish him well with his processes/work, and still not be his gf. Ultimately, I suppose, the decision will come down to what sort of relationship do you want/expect, and is there any possible way to achieve your expectations with him?

I get the feeling guilty, and thence reluctant to break it off. Try to imagine having to break up with him six months or a year hence...how much more guilt & complication might that carry?

Best of luck to you. Ultimately you must decide what it is you want, and go from there. I know it can be so hard. But in your heart you know where you want to be, right?

xo,
Chyia, sending good vibes