Eh, that is really nothing. My ex used to have the entire conversation in her mind. And, worse, I would have actual conversations - with response from her - that she often did not remember.
I only found out after 10 years of marriage that she had Multiple Personality Disorder. This was the doctor's diagnosis - not mine!
But what was really awkward was explaining to the MPs how I could not have possibly been involved in one of her many "self-injuring" incidents.