"H, I know that we've already talked about this, but I need to say one more thing and then I will let it drop. I am trying really hard to learn to trust you again. And I think that I have made a lot of progress. But what happened with us caused some wounds that aren't just going to go away quickly. It is going to take time. I realize that me asking you to see the letter may seem silly to you. Maybe it is. But from my perspective, it is confirmation that I can begin to trust you again... confirmation that I don't need to fear repeating the past. You and I being able to be completely open with one another and feeling that neither of us have anything to hide will make me feel more secure in the fact that you want to be with me... that you want our marriage to work. That's what I need for me right now. Hopefully, a day will come when I feel SO secure in our marriage and our relationship that I won't think twice about these types of things. Anyway, I understand that you have your perspective as well. So I will drop the issue now. I just felt that I needed to explain why things like this are important to me. Love you. Goodnight."
I think that all you can do is explain your feelings, and be open and honest with your H. You can't force him to show you the letter. And if you put too much pressure on him, you will come across as nagging. Though only you can decide if you trust him enough right now to let this go.
Denver
M 43 X 38 T 13 W moves out of home 11/2010 Roller coaster from hell 2/2011-5/2012 I request divorce 5/2012 W moves home 6/2012 Good time 7/2012 - 1/2015 I leave 3/2016 process of divorce