Hi Dunoon,
I’m sorry that you’re going through this. I’m glad you found us though, you’re amongst friends here.
Just to get the timeline right (I’m putting my guesses as to the timing in brackets):
* married 46 years ago
* uncomfortable feeling one night when she came home drunk - is that a different event from the Christmas party?
* 45.5 years ago: Christmas party affair
* date with the AP
* [44-42] years ago: two kids
* [40] years ago: drinking, violent towards you, going out dancing without you, no sex on the weekends. Possibly kissing and being fingered whilst out.
* [39] years ago: hysterectomy followed by perfect marriage & perfect wife
* two months ago: DDay
Is that about right?
First off, while it may have been 45 years ago for her, you’ve only known for 2 months. That means she’s had decades to process this. You’ve just learned that she lied to you all those years ago. Moreover, I have my doubts that you actually are getting the truth now. As you now know to your sorrow, cheaters lie. Ubiquitously. She lied about it being "just a kiss" that first time, and she is probably lying now. The pattern is as old as time. First they say it was just a kiss. Then they say it was only oral. Then they say it was sex, but only once and they didn’t like it. Then you find out it was far more extensive…
I’m having trouble believing that she went to the bar with him, but got cold feet and decided to come home.
What is she saying about the rumors of what she was doing when out dancing? I assume she’s just denying it, right?
Anyway, it is generally thought that it takes 2-5 years to heal from betrayal. So two months is not enough, and no, she doesn’t get to dictate the timeframe upon which you heal. "Just let it go" is rugsweeping, and that doesn’t work. It will not just go away on its own.
You should see a therapist - one that specializes in betrayal trauma.
There are a lot of good articles in the Healing Library. You may want to print out "Joseph’s Letter" for her to read. You deserve to have the truth. You should also ask her to read "How to Help Your Spouse Heal from Your Affair" by Linda MacDonald. Your WW does not grasp the magnitude of what you’re going through in the slightest. This is another thing she might benefit from reading: https://www.survivinginfidelity.com/topics/324250/things-that-every-ws-needs-to-know/
If you do print this out, don’t reveal this website so that you can keep this your safe space.
Finally, just know you’re not a fool. You’re a man who loved his wife and his family and trusted her. Her cheating is about her flaws, not yours. Remember: people cheat because of what’s wrong with them, not what’s wrong with their partners.