Write the letter, poor out everything you have to say to the SOB and then some. Let him have it. And then burn the letter.
You will feel better, I promise. You will be released from some of the stress and strain you are under emotionally. But as you say, he isn't going to hear any of it. Nada. As wise Beatrice pointed out to someone on this Board, although I can't remember who, there will come a time when you will get your chance to tell him and he will be able to hear you. When that time comes, it may no longer matter, but if it does, you will be able to say it.
