One in five respondents in a survey asking people their biggest regret discussed a lost opportunity in love. The next most common regret involves a family issue. In this study women fret about a lost love twice as much as men. People expressed regret about the things that got away more than regrets about the actions they took.

This is a thought provoking question for all of us.
How would you answer it?
Read the article by Tara Parker-Pope as well as the comments in The New York Times.

For more discussion read the article on the blog The Situationist for an interesting perspective of this very complicated emotion.