I really like that letter. You have owned up to your parts, mentioned her parts, and expressed regret. I think she will be able to read it and process it, as you aren't accusing or trying to hurt her. I hope she will see it as you meant it, sincere.
lwb, that is what I am hoping for also. No blaming, no guilty, an understanding of my regret and my openness and honesty.
“Do you want to be RIGHT or want to be LOVED” “You have to have a life to share a life with someone” “When you stop resisting, you start learning”