Loyalty in a friendship is really crucial. So, what would you do if you discovered a sinister truth about a friend that, if made public, would betray both your wife's and your friend's trust? The story below is an account of a frustrated husband. The original poster (OP) had just learned from his wife a frightening secret about his friend. To put things in perspective, the wives of OP and his best friend are best friends. For a long time, the two couples have been close friends. The friend's wi…