Throw in the Towel

The scenario is simple.
You broke the heart of the one you were supposed to spend the rest of your life with.
Their wound healed, best it can.
The hurtful things more or less a fragment of the past; a caution for the future.
But life has moved on.
Do you pry open those old wounds to reconcile something that is not reconcilable?

Perhaps the answer is only obvious to me.

Sometimes selfish notions to make oneself feel better should be disregarded. In making yourself feel better, the other person has now been re-damaged.

I tried not to think about it; I tried not to dwell upon it.
What bothers me isn't the action.
What bothers me is WHY the action.
Why now? (Really - why EVER?!!! Lack of shame? Lack of conscience? Lack of everything and anything that would scream no?)
Why kick up old dust that has long settled and blown away?

It will pass, just as many other things that bother me.

In the interim....
Where do I find comfort in this moment of abysmal loneliness.
Can anybody even fathom reliving such a painful memory?