We had a long conversation yesterday. What is boiled down to is I wanted her to admit to me her thought process and intentions of inviting him over that second time to exchange the check in person. This is something I've gone back to many times. She simply can NOT admit she had intentions of doing it again, and taking it further. Reasons she has given include - I wanted to test myself, I wanted to talk about it with him, I wanted to see him but not for it to get physical. She has admitted to so much, but she can NOT admit this part to herself or to me. Cannot acknowledge that despite both being adults who had just discussed their attraction via text, it was clear what they both wanted and what her intentions were. She said to me "I feel like you won't accept anything I say as true unless I lie and say I wanted intercourse." - which is not true. But I do want a realistic and not sugarcoated admission of how she envisioned the visit going.
I think everyone but your wife can see why you are frustrated and unconvinced about her current stance on the invitation for the second encounter. Your wife is trying to avoid taking responsibility for what she did, which may be human nature, but she is impeding the reconciliation that she wants to happen at an unrealistically high speed.
You feel, equally naturally, that you cannot begin to reconcile until she has admitted the full extent of what she was doing, taken ownership of it, and provided evidence of why she will not do this again if she feels down. The longer she drags this losing strategy out, the more entrenched your positions will become, and the harder reconciliation will be. As such, her defense may become her defeat.
She simply can NOT admit she had intentions of doing it again, and taking it further.
Reality proved that whatever she was thinking when she invited her AP back again, she had no intention of preventing it from happening again, and no intention of not letting it go further. So she let both of those things happen, regardless of whether she was simply excited to invite him round again to see what would happen, or she had a checklist of sex acts with tickboxes and approximate timings prepared. And after the first encounter, what did she think was going to happen when she invited him round again?
Reasons she has given include - I wanted to test myself
Why? She had already failed the test by allowing the first encounter to happen. And then she allowed a second, more active encounter to happen, under test conditions??? And this ignores the elephant in the room, which is why invite him round again to perform any kind of test at all? What did she think she would learn from these 'tests', versus what she actually learned from them? Whatever it was, she is fighting hard not to admit it, accept it, and deal with it.
I wanted to talk about it with him
Again, why? What was there to discuss? She is a married mother with two kids, inviting a man she has already fooled around with for a discussion about...What? Their future? How they are going to make things work? Where they can meet up without getting caught?
I wanted to see him but not for it to get physical
And yet this was the second physical encounter, which (according to her) she was 100% in agreement with and in no way coerced into any physical actions, despite that being against her stated intentions of a pleasant discussion, with perhaps nothing more than light hand holding at most. You have a hard time believing that because it is simply ridiculous, and 99% likely something she invented after the event. If her statement is true, it begs the very obvious question: if she did not want it to get physical, why didn't she prevent that from happening?
She said to me "I feel like you won't accept anything I say as true unless I lie and say I wanted intercourse."
That is the quote that bothers me more than the weak (if natural) statements about her 'expectations', because it makes you the bad guy, and attempts to undermine you. I think she is doing that because you do not buy her stated aversion to, or intention of, anything physical happening, in light of what actually happened. And you are right not to buy into a comforting fantasy that she has created for herself. After the first encounter, she knew what was likely to happen in the second, and when it did, she went along with it without any complaint (despite her stated reservations and lack of desire for anything physical to happen).
A lot of this is obvious to any adult, and I think you have a good and realistic take on this, PFB. What you want is not punishment, but proper accountability and acceptance of responsibility, as part of re-establishing honesty.
Your wife had begun an affair. The first encounter that became physical led to a second. During the second encounter, your wife had some kind of epiphany that burst her fantasy bubble, and the affair was blown off the rails. However, had the epiphany not have happened, events would probably have followed the same course as a thousand other affairs documented in this forum. The brevity of it does not diminish the nature of what had begun.
When your wife says, "I don't recognize myself during those 2 weeks", what she really means is, "I don't want to recognize myself during those two weeks", but that is what she has to do to if she is going to investigate and change the aspects of her personality that surfaced during that time. I hope she can reach understanding that doing so is not punishment, but the necessary work before a solid foundation for reconciliation can be put down.
These are still early days. There are many stories in this forum where it took a wayward spouse a while to 'see the light' and drop their defense, but they got there in the end. Hopefully your wife's IC can help her on that journey, but it something you can raise in MC too, if you decide to continue with that. How your MC responds to that may be very enlightening about their attitude, and may help you decide whether or not to continue with it.