Another vote for writing it all down. But rather than stashing it away under the mattress, may I suggest a perhaps more therapeutic ritual?
I once heard a story about how Alaskan natives would “cleanse” themselves of their misdeeds. They would go to the nearest river and explain to the river their transgressions and atone for them. The spirit of the river would then take their guilt and carry it away. A more modern version of this involves writing letters, explaining what the writer was atoning for and then letting the river carry away the letter.
This has some precedence, of course. According to biblical lore, nomadic Jews would find a sufficiently expendable goat, symbolically place their misdeeds on the goat, turn it out to the desert and, after giving it a swift kick in the ass, watch as the goat carried their sins away. This gives us the word “scapegoat.”
Obviously these rituals have much in common with other acts of penance, such as Catholic confession.
I’ve actually done the letter thing. Someone many years caused me a great deal of pain, and I finally had to cut off all times with them. I wrote them a long letter – by hand --, explaining why I used to hate them, why I still didn’t understand why they did what they did, and while I didn’t necessarily forgive them, I would no longer allow myself to hate them or let their actions weigh me down. I made sure not to use names on the miniscule chance someone might actually read it, and then I sealed the letter in an envelope and dropped it at the confluence of the Willamette and Columbia rivers.
Hokey, for sure. But it worked. I felt much better afterward, and rarely thought about the events in the letter afterward.
Now in my case, I wasn’t the guilty party but rather the victim. I’m not sure how well it would work if the roles had been reversed. But I still believe it would’ve been quite therapeutic. So. Write her the letter, but think about sending it off to parts unknown via the local river. If that seems too ritualistic, burn it in the BBQ or the kitchen sink. But put it out there, into the ether. The whole process may prove quite therapeutic.
On edit, I see some of this has been suggested already. Just add me to chorus. That’ll teach me to skim before posting. Or not.