Sorry Cutter, I would advise against this. My reason being that you will never know what will happen in the future with this friendship. (Just like you would never have predicted what would have happened in your marriage)
Please trust me on this. If this man does not take you at your word as a man right now, what kind of friend is he? You do not need to prove your friendship by revealing your deepest, most sensitive thoughts. This all comes down to a matter of trust.
Also good points to consider.
Gardener
"My soul, be satisfied with flowers, With fruit, with weeds even; but gather them In the one garden you may call your own." Cyrano deBergerac