Betsey, dear, I am with Cathy on this. It is too long and the periods are very involved. Also I detected a tone of suppressed anger... which you have every right to feel. Also it sounds condescending in some points. I am sure you did not intend it to.
Anyway: about men and letters... They do not like them in general. A year ago, I was feeling very fed up with H and his lack of progress in our sitch (I did not know yet the half of it) and spent days writing him a letter. I cleared it with everyone and finally gave it to him. He read the first two sentences and stopped, telling me he was very tired of being insulted. I just smiled, said "yes I am also tired of being insulted" and walked out on him and went totally dark on him for 4 days. Later, I learned that was the weekend he broke up with the wh*re and went to live at his office.
What I mean is if you have to write the letter, shorten it and make it more bussiness-like and to the point. And be prepared for his reaction, even if it means he does not read it.
"You don't throw a whole life away just 'cause it's banged up a little"
Tom Smith in "Seabiscuit"