Overview: Bethenny and Carole continuing to go shot for shot about the dissolution of their friendship; the women relive their stomach-churning trip to Colombia; Carole revisits the highs and lows of her season; Tinsley takes issue with Carole’s protests about their relationship; Sonja discusses a new chapter in her life and delves back into her issues with some of the ladies; and the women end things by sharing their biggest regrets of the season.