Surprise, surprise the true reason motivating her confession - BIL saw her holding hands with the AP and she wanted to get ahead of the train wreck to follow.The big elephant will always be in the room to a certain extent. From what I’ve seen most waywards dont get it because they weren’t on the receiving end. Her affair was another life. They were dating and having sex 2-3 times a week. Alone together in his apartment. The only reason she got caught was her BIL saw her walking down the street holding hands with the AP.
I suspect this didn’t register upfront with her BS. Most don’t think long term.
This maybe the new norm. Once an AP is brought into the marriage they never really leave. At least the thoughts don’t for a lot of BS’s.
If BIL had not seen her holding hands it would be business as usual with her and her AP while the husband would be left in the cold and the dark. True love.