IMO, RB creates his own reality, he plays mind games to confuse and gaslight; even when hard evidence is placed in front of him he will assert that evidence is wrong. He admits things that don't matter or conflict with his narrative, then denies, then he can't remember.
- He placed the ad - Yes, because it doesn't matter, it has nothing to do with Marion.
- Marion replied - He has changed his evidence numerous times, created confusion and diversion from the real way he met Marion. IMO it was at the Art Centre which he flatly denied.
- He visited Marion - Yes, because he initially believed the police had witnesses.
- Marion called his home - Yes, no, and last evidence was maybe, can't remember.
- Marion visited his home - IMO, a concocted story to divert attention to the mythical pilot character.
So, we have him admitting placing an ad in 1994 and visiting Marion a couple of times in 1997.
You really have to listen carefully to ALL his inquest evidence (multiple times) to understand how he functions.