Now, I am telling these things to you because I want you to know what they meant for me. First, you have not taken my ability to feel joy away. Even though you have hurt me deeply, I now know that I can still smile.
OK, I take it back. Here you are saying things about him. Find a way to change it so you only talk about yourself. For example, "First, I still have the ability to feel joy. Even though I feel that I have been deeply hurt, I now know that I can still smile." See the difference? You don't accuse him, but you still say the same thing.
Also, when you say that it is beneath you to try to win him back. I would omit that line, it is insulting to say that it is beneath you. Just say, "I will not try to win you back." No value judgements.
Having read your thread, you are coming to this very quickly. Most people take months to get where you say you are. Don't rush yourself. If you are not ready to cut him free and watch him go gaga over OW, hold onto the letter. On the other hand, if you are ready to give the architect a call and move on with your life, then go ahead and send the letter. It is fair warning. More than you got.
