I'm a 52-year-old straight guy from Australia, 29 years married. About eight years ago, I met a lady through work and we became friends, with our friendship continuing after she moved on to a different job. We meet up for coffee occasionally, and we share a love of cycling and kayaking, which we also do together on occasion. Both of us are in long-term, committed monogamous relationships. Our friendship is strictly platonic, sharing our love of riding and paddling. Neither of our partners shares our interest in these outdoor pursuits. My friend does not feel safe doing these activities alone, so often depends on my company for safety as well. The problem is that my wife gets jealous of the time we spend together and wants me to cut off contact with my friend. My wife does not trust my friend not to "take advantage" of our friendship. My relationship with my wife is the most important one in my life, so I am prepared to say good-bye to my friend. How do I say good-bye in a respectful, caring, and loving way? If she asks why we cannot be friends, I don't want to tell her, "Because my wife doesn't trust you not to try to get inside my pants (or cycling shorts)," as that would be hurtful. I don't want to lie, but telling the truth would be damaging to my friend.