How you handle this situation depends on how you relate to the parties involved, and maybe to what you know about their relationship. Are they both unhappy? Is there a history of cheating by one or both parties? Or is this lifelong buddy of yours just a serial cheater who is physically and emotionally incapable of monogamy? Is the woman your wife’s best friend? Is what you say or do likely to change their relationship for the better, or end it completely? How is your response going to affect the friendship you have with this guy, and how much does that matter to you?
There’s no easy answer as to whether you should help cover up your friend’s cheating. What would you do if you received that text? Tell us below, in Comments.