It is almost 5 months since you joined SI and I hate to say this, but your wife doesn’t get it.
By that I mean she has no clue that she has continued to add more fuel to the fire. Or it may be she’s not all that invested and doesn’t care that she keeps negatively impacting you.
She should read How to Help Your Spouse Heal from Your Affair by Linda MacDonald. It’s short and will help provide a roadmap towards healing and recovery.
If she doesn’t read it, that’s a sign. And not a good one.
I always say it’s not the affair that kills the marriage it’s the behavior of the cheater after DDay that kills the marriage or relationship. And in this case it’s true - she continues to be shady and deceptive.
I’m suggesting you read up on the 180. Then do it!
My H was forced to change because at dday2 of affair 2 I changed. Long story short I thought we were R, found out he was still cheating and I snapped. Threw in the towel on the marriage.
Very calmly told him I was D him and did the very hard 180. After 2 days he very quickly realized he had no control over me or anything— I just pulled the rug out and stripped him of any say on anything.
Best thing I did — Standing up to him. He realized I was no longer a doormat and he could no longer get his own way.
On your case — I’d suggest you stop having fights and conversations with your wife. She’s not being transparent and you continue to bang your head against the wall trying to get her to change.
And it hasn’t worked so far.
You need to be prepared for the backlash when she finds out you told the OBS. (Proud of you for taking that step). When confronted by your wife when she finds out, you should ask - how did you find out? I’m hoping you didn’t tell your wife you did that btw and you can use it as leverage she still has contact with the AP.
Lastly when I decided to turn my back on my H (as I planned to D him) it was the best thing I did. I became a force to reckon with as my silence and hard 180 was hard to penetrate.
Somehow in 3 weeks he managed to show me enough of a change that I didn’t file for D. I decided to wait and see and he continued to do everything possible to make amends. In 13 years since I have not once had any issues with him cheating and trust has been restored.
But only because I took a stance that I am not the doormat I once was. And I stopped "trying" to get him to change. Either he did or I D him.
It was his choice to change. And IMO that is the only reason we are happily married.