I'm pretty good at remembering my dreams & have talked in my sleep since childhood. Often my dreams include reading aloud (earlier to schoolchildren, now to folks in nursing homes). I have read of people who (IRL) repeat what others say--& do so in their dreams. Is there anything like this that you do IRL? Or that ring any bells with you?

What I'm suggesting is that everything a person says while sleep-talking isn't necessary a thought expression.

In a calm moment, you might try discussing with your partner the importance of context. A lot of what a person says takes on different meanings depending on the context in which it is uttered. I can't think of an example--darn memory! Lack of rather.

Good luck. Sad he doesn't realize that he's using not telling you what you said as ammunition for turning this into a fight.