Facebook has become a valuable tool for protest organizers. It's also become a common forum for political discussion.

News items posted there often generate yards and yards of comments, but, as often as not, someone posts something that's proven to be factually incorrect — they just won't admit it. 

So why is it so hard for us to admit when we're wrong? And how does that affect our political conversations?

Take Two put that question to Ramani Durvasula. She's a licensed clinical psychologist and author of the book "Should I Stay or Should I Go: Surviving A Relationship With a Narcissist."

Press the blue play button above to hear the full interview.