S3, E2: Elliot tries again to find a balance between dating and her career, as Carla and Turk move forward with their wedding plans, J.D. feels as though he is losing a friend. -- When Carla (Judy Reyes) and Turk (Donald Faison) set the date for the wedding, JD (Zach Braff) realizes this is the end of an era in their friendship, but his efforts to celebrate this milestone are rebuffed by Turk. Elliot (Sarah Chalke) is determined to win back her old boyfriend Sean (guest star Scott Foley, "Felicity"), but is again faced with tough choices between a relationship and her career.