yep... don't send her the letter. If it's true to you and is a reflection of your journey to this point, it will add to your story that you will share with her someday. I don't think today should be that day.
I would not have wanted to hear that from my H after the bomb within the first few months.
In my case, I wanted space away from his actions & words that had left me physically ill & emotionally numb. I was overwraught with trying to keep the wall up around my feelings and my thoughts.
Only after I had time to rest and regroup to a 'new normal', then I could 'watch' his actions. Once his actions showed me even a minutia of consistency & regularity in what he said he would do, then I could tolerate listening to a little bit of what got him there. He had to do what he said, not just say what he was going to do in order for the trust to begin to rebuild.
In this letter I hear you asking her to understand why you are the way you are. Uh-huh.. she knows what you are(were), you showed her that for years.
Be something different, if you choose. What will those choices be? Write them down and live them, in your thoughts, words & deeds,
peace BS
Divorced 03/2010 Mom to two amazing kids
Taking the road less traveled because those encountered on the way may be just as unique.