@Thoughtsfordays, I’m sorry for the pain that your H has inflicted by cheating and abusing your trust for 4 years. It sounds like his betrayal has spanned your marriage, pregnancy, and the heavy lifting of parenting.
I believe there is much more to this and that you are being gaslighted.
My take:
H got in there first for damage control, as he wasn’t sure what your Friend had actually witnessed. Plus, he knew that OW’s behavior was suspicious, hence his being cool and upbeat with Friend and reporting their visit to you asap.
Friend observed H and OW’s change in body language, before and after being rumbled. For 2 minutes she watched them behaving like a couple who were holding hands or walking very closely. When she greeted H, OW suddenly bolted with no introduction — very strange behavior if she is indeed his platonic good friend. During Friend’s subsequent sighting of them, they were walking in a normal manner in case she was still around.
After you confronted H, deeply unsettled, he put you off for 2 days. I assume that he was creating his narrative [the Script] and getting his story straight with OW.
He later admitted building a 4 year intimate connection with OW, a woman you’d never even heard of. He is now rewriting history to justify and shift the blame for his infidelity to you, which is highly manipulative and is clearly bullshit, as he has never expressed unhappiness. Newsflash: You are not responsible for his choice to cheat. He is responsible for failing to protect his fidelity. If he did have issues, he had a range of ethical options to use to deal with them — keeping you in the dark and investing in an emotional affair were not among them. Indeed, he chose to secretly open a window to OW and pour his energy into her for mutual gratification, while duping you and damaging your connection.
In my view, this man is a sneaky cake eater who has been leading a long-term double life. After 4 years, it is highly likely that he and OW have been physically involved. Your Friend witnessed their intimate body language in public, so it stands to reason that more has occurred in private. Even if their relationship has stayed in the emotional realm, this is still a monumental betrayal. His blaming you shows a lack of true remorse, which can lead to a false reconciliation.
@Thoughtsfordays, you would be foolish to devalue your Friend’s account. She was clearly disturbed by their inappropriate behavior. If she wanted to exaggerate or shit-stir, surely she would have lied that H seemed nervous and shifty upon seeing her. I believe her report is accurate.
H is lying about the extent and true nature of this illicit relationship. I don’t believe that you have the full story, and until you do, it will be impossible to move forward with H. I would be very concerned that he and OW have gone underground. Have you actually seen all of their messages and do you now have open access to his phone?