Friendship-based betrayal comes in many forms, from stealing or sleeping with your significant other, to going after a job you want, to gossiping or sharing something you told them in confidence. From my work with men and women, and my research on friendships, I’ve learned that disloyalties and disappointments like these are woven into friendships far more often than we realize. In one study, 68% of the people who were questioned reported having been betrayed by a friend at some point in their lives. Even close and loving friends can betray one another – sometimes intentionally, but sometimes without meaning to or even realizing what they’ve done. This is because friendships involve an interaction between the inner worlds of several people. Each friend’s personality, needs and past experiences have an impact on the relationship, and each of us will have a (sometimes dramatically) different take on what happens.