This video is unavailable because we were unable to load a message from our sponsors. If you are using ad-blocking software, please disable it and reload the page. Embed Code Restart Playing WATCH MORE VIDEOS FROM THIS EPISODE > Is sleeping with your ex ever a good idea? Psychotherapist and author of "The 30-Day Love Detox," Dr. Wendy Walsh, explains why broken-up couples backtrack, and the effects it can have on your mental health. ShareTweet