Closur--the official end of a relationship. It leaves both parties with a clear understanding that what they had is over and they can move on with their lives. Sometimes this can be a conversation, the return of some gift or the performance of some act known to be fatal to the relationship--if you do that it's over; then they do that. But suppose there is no closure? Suppose things just fade out. Suppose something is different that you can't quite put your finger on and the opportunity to ask is taken away? Suppose the person just leaves? Can you just say well forget it and carry on with your life? Can you give yourself closure without the other person's help?