Lonely guilty
You can’t, nor you should aim to.
And I could spend a lot of words here but there’s a better way:
No answer is as elegant as it question
Ask yourself
What there’s to balance?
You already see it now.
It’s trauma, identity and reality destruction of a person who loved you.
It’s possible to "get even"?
Yes, if your partner’s goal is revenge, then he could work to make you fall in love so deeply that you will reach out to the happiness it always eluded you in your life, make you feel finally alive and at home, complete…
And then destroy you. Shatter everything you have, humiliate you and in the height of your suffering leave you for another woman while laughing at your traumatized face.
Build you up, while digging your grave.
That’s what would probably make a BS feel better about your betrayal. Revenge, payback, to throw you in the same dark place you and your affair partner threw them.
It will not heal you or your BS nor make either of you a better person.
At best it will make you feel it and understand what you did.
So probably you will feel even more miserable.
Then the books are balanced, once you lost any agency, hope, love.
Is it something worthy to aspire to?
I doubt, it is not worthy and this is coming from a guy who is pretty big on revenge.
If there’s any shred of love left, any good memory… just drop the revenge.
Don’t balance the books, it’s a mirage, a Fata Morgana, there’s only pain there.
You want to reconcile, balancing the books it can be done only by your BS if the goal is your annihilation.
Forget it both for this is what it looks like.
Live for today at your best and carry the wound as a memento of how you can fall. So both of you will never fall again, because you will be always ready to catch one another.
That’s the best you can do.
Balance the books is the furthest place from love there is.