Did you read 25's post right above your letter? Listen to what she is trying to help with your letter. Your personality wants to say too much. I think folks here are saying to not go into details about how you felt. Maybe I'm wrong, but if you make a written apology about your reaction to her A, keep it short and don't bring in how you felt b/c that will only anger her and will look like you are pursuing. Look at 25's edited suggestions.
And, Johnnie, give yourself a little test this time. See if you can wait a while before sending the letter (apology). It's a boot-camp DR training step... JK
(hug)
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!