I think it sounds great, CD! Will probably lift a few lines from what seems inevitable for me to deal with in a few weeks.
I just want you to make sure you have some things in your back pocket so you'll feel confident no matter what she says that you have a response.
I agree on leaving out the "maybe we can be friends one day" part. You want to exude quiet confidence! Like, You know something she doesn't and you're not telling."
Have you read the "Boundaries" thread on Newcomers? Pretty good.