Exactly..... I'm not sure where the breakdown is with her. I have all of her texts yet she was confused. Sounds like she's trying to cover her tracks.
It's not uncommon for people in affairs (even strong EA ones) to BE confused, and to outright not remember important dates, facts, statements, etc.
The guy who mentored me used to say that he thought people in affairs instantly lost 40 IQ points. I think that's about right.
At a minimum, keeping two completely different "plates" (men) spinning, takes a lot of work, emotional toll, and attention to detail, especially when there is a high level of DECEPTION involved.