I have to agree with the others that the letter is not a good idea at this point. I think it is a good letter but probably it is not the right time.
I have sent my H a few letters at the beginning of my situation. I will tell you that it did not really do anything positive for the situation. He replied to my letters - the first one with a brush off "thanks for sharing" type reply and the second with a heartfelt long letter telling me he was sorry but our relationship was OVER. Neither response made me feel very good nor helped me move on! So it was a waste of time.
And he and I also have a past history of communicating via writing so I get what you are saying about that being your most effective means of communication.
Maybe in the future the letter will be read, absorbed and appreciated but I think now you don't know enough about where his head is to know if the letter should be shared. Leave it at home and you can even mail it after you see him. But don't take it with you. Too much pressure.
Just try to go, have fun, look sexy, show positivity and be cool. This meeting may reveal nothing or it may set something in action. Just go and see.
I'm dealing with a possible meet up with my WAH this week too, I'm feeling stressed about it. Hope you are feeling better and positive!
