What do you do when you discover that someone who was once your best friend is not the person you thought they were? What do you do when it turns out that your friendship, like the better part of their life, was based on nothing but superficiality, lies and manipulation? How do you face them, when you don't like who they've become? How can you possibly help, when they are on a path to becoming the worst version of themselves? What do you say to someone when single mistakes in their past turn out to be a pattern of ongoing stupidity -- when clearly no lessons have been learned, no changes have been made, and there are no more excuses that could ever justify their actions? How can you believe anything they say ever again -- even an apology or a promise to try harder or do better -- when the most sacred trusts have been betrayed? And how do you deal when your heart hurts so deeply for the dozens of people whose lives they are destroying?

You know, 'cause I'm just wondering. Hypothetically, of course.