In the months right after D-day I felt the need to "balance the scales" as well.
The only thing I could think of that would move the needle at all was for me to have sex with other people.
For context my wife and I were each others first, and there was no one else until her affair. So she got to have this experience at my expense, and I still haven't. Pretty frustrating for me.
Then I got to thinking about it, and what it would really take for me to feel a kind of balance.
In our case she had sex with her AP hundreds of times, in all sorts of places and environments. She spent time in a different city hanging out with him and acting like they were a legit couple. She got to try fantasies she wanted to try, and experience things differently. She got to experience deep feelings for another person. Essentially a full on parallel relationship. Of course it wasn't really a parallel relationship since it was built on lies. But it was very close and very intense for them.
That was all extremely hard for me.
After a while I realized that even if I did all that, found someone else, formed a deep relationship, had sex hundreds of times and got all those experiences, I still wouldn't feel it was balanced.
I even thought maybe she should go get an extra job, and compensate me financially for all the lost money and effort and now the rather large cost of therapy.
There was even a time where I considered a revenge affair just to communicate how it felt to her in a small way. She seemed to not understand the pain I was going through and I thought maybe that would help her understand, and give me some of those experiences she got as well.
I'm sure some of that that would have helped, but really the thing lost was not the sex, or the money, or her not understanding my pain. The thing lost was the deep trust I had. Trust like that unfortunately can never be replaced.
Even if we reconcile, and years from now I am happy that our relationship is so much better than it was before, there will still be that little part of me that knows she is capable of this and I'll be watching for it again. I suspect that that part of me will be watching even if I'm not with her. It's a scar that will never heal fully.
Unfortunately infidelity is EXTREMELY unfair to the betrayed partner(s), and there is nothing that can make it fair. Thats one of the more painful parts of infidelity in my opinion. Something was taken, without our permission, that can never be returned.
Unfortunately this feeling took a really long time to lessen for me, and it still pops up from time to time.
The best you can do is become a safe partner. Treat him with the kindness and respect of someone who gave you another chance even after the extreme and underserved pain you caused him. Either it will lessen over time with healing, or it won't.
If fairness is his deal breaker, then the best you can do is respect that and let him go with as little pain and struggle as possible, because there is nothing you can do to balance the scales.
[This message edited by Theevent at 5:06 PM, Friday, July 3rd]