Write about a letter that never made it to its recipient.
I wish I could tell you this in person, but I fear that by the time you receive this it is already too late. My dying wish is that we once again be friends. That we can, if not resolve our difference at least put them to one side, to dismiss them from our lives for the insignificant mistake that they undoubtedly were. We both got hurt, but not by our hands but that of another, one we both loved and trusted. The deceit saw us at war and him walking away free from the guilt he should have carried.