-Casey tells Mindy he's decided to spend a year in Haiti. Mindy breaks up with him and goes to a fraternity party with her protege Katie. The new nurse is driving Danny and Jeremy crazy so they try to get him to come back to the practice. When Morgan refuses they show up at his house with a puppy. At the party Mindy runs into her ex-fiance Tom (Bill Hader) who, she learns, is recently single as well. Casey is there as well and fights Tom when he sees him flirting with Mindy. Danny, Jeremy and Morgan arrive at the party and help break up the fight. Morgan decides to come back to work after Danny calls him his brother. Casey tells Mindy he wants a future with her including children.