To clarify what I said previously. It wasn't me who asked him initially to repeat back to me what his understanding was of what I said several months ago....that was something our MC asked him to do, to make sure we were communicating clearly...and to help avoid misunderstandings.
Last night...I didn't ask what his understanding was, he was asking me if I remembered what "I" had said....and when I told him that she had asked a similar question several times of us...I wasn't sure which time he was referring to....that's when he told me his current understanding of what I said.
Initially, in our MC's office...I think he was merely parroting back to me what I said....even though our MC did ask for him to try to put things in his own terms. Personally, I believe that once that session was over he picked my statement apart a bit, and began focusing on that one portion of it.
I agree that he may not be aware of what he was doing...which is why I did take the opportunity to clarify again last night...and put the comment back into context. However, I cannot continuously make sure he understands and that his understandings do not mutate (not saying you said I should do this). It would be up to him to continue checking to make sure his understanding is clear...I cannot make him do this.