The first thing would be is that I am truly sorry for the hurt that I have caused. I know I cannot take any of it back and I know you will hurt for a long time. This was never my intention.type apologies that mean nothing.
Nowhere in her letter does she mention her affair, or the OM.
She is not remorseful. She goes out of her way to make sure her on-going affair, OM, lies/deceit, betrayal, etc., is not specifically mentioned.
She is tired of living with the consequences of her choices. She's wanting to slitter under the door, by giving an umbrella apology.
Has your IC/MC ever said you show codependency traits?
It is not about what you feel should work in your M. It is about doing the work that gets the right results. Do what works!