As Cristina tries to recover, she proves to be a very difficult patient, and a visit from her mother doesn't improve her demeanor any. And Meredith's mother, Dr. Ellis Grey, has the hospital staff running in circles.
Catch My Disease — Ben Lee
Meredith, George, and Izzie are at the bar talking about Cristina. Derek talks to Bailey.
Dr. Webber and George check on Ellis. Miranda calls Jeremiah's parents. Preston comforts Cristina. Alex goes on a date with Izzie. Meredith finds out that Derek didn't sign the divorce papers.