The new FX series about the tragic love story is a waste of time. “Love Story: John F. Kennedy Jr. and Carolyn Bessette” chronicles Bessette’s path from a private citizen working in the publicity department at Calvin Klein to the enigmatic wife of a former president’s son. “She knows if she marries him, that will be her defining characteristic. It will be like she never existed before she met him,” a colleague says about Carolyn Bessette (Sarah Pidgeon) in FX’s new limited series. The nine-