My wife and I are in an open relationship. She is bi, and I am straight. Every now and then we decided to look for a third person, or I need a little TLC for about a week or so. Sometimes we get lucky and we find some we like who we're both attracted to, but do far everything had ended before it even got started. The number one problem we keep running into is after we find someone they decide later on that they don't think they can share a partner. Any recommendations? Non judgmental comments only please.