Brody: Five years ago, I lost my best friend. A year later, I fell in love with his wife. That Christmas, I ran, afraid of what my feelings held.Three years later, I still can't get her out of my mind.So this Christmas, I've decided I am going to return to her. I just hope she'll take me back. Cass: Five years ago, I lost my husband.A year later, I fell in love with his best friend.That Christmas, he left with no explanation. Three years later, I've...