Yes, that's it:

"I wish you could know how sorry I am that things turned out this way. Never in my worst nightmares would I wanted this.

I hope you are well."

and leave out the peace and grace. Except--not being a religious person--but I feel like--I don't know--going to confession--you say you are sorry so that you can find? be granted? be open? to the grace of God's forgiveness. All you Catholics, help me out here!

I guess I really do want to have him forgive me for my part in the failure of the R, but I don't think that is a conversation that is ever going to happen.

Sigh.

To write, or not to write, that is the question.

A simple few lines, to a man you spent half your life with.

The rest is silence...