DO NOT SEND THAT LETTER/TEXT!!! Place it in a box and sit it up on a shelf or burn the letter later. Sending that letter will not help your situation and it just might push him further and further away. That letter will only make him feel even more guilty about what he's done in the past.
Keep the focus on you and your upcoming trip. There will come a time to discuss that affair from years ago, but now is not the time to do so. Give him plenty of space and time to choke on.
Go, have a good time and leave the MLC mess behind you. Dig deeper for patience and when you sit quietly, the answers will come.
Keep your focus on you and what you need to do to get ready for your trip. BTW, when he asks a lot of questions about what is going on up at your place, be vague...you do not have to go into detail about anything. If he wants to know something, then he needs to bring himself up there and find out for himself. You do not need to be chatty w/him. Answer short and sweet and/or change the subject if you don't want him to know something.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.
