UNITED STATES - APRIL 25: GREY'S ANATOMY - 'Losing My Mind' - Dr. Wyatt refuses to let Meredith give up on therapy, Alex learns the truth about Rebecca's medical condition, the Chief insists that Erica perform a risky surgery on his mentor, and after receiving news of Burke, Cristina continues to do things contrary to her nature, going so far as cleaning her always-messy apartment, on 'Grey's Anatomy,' THURSDAY, MAY 15 (9:00-10:02 p.m., ET) on the ABC Television Network. (Photo by Mitch Haddad/ABC via Getty Images)

UNITED STATES - APRIL 25:  GREY'S ANATOMY - 'Losing My Mind' - Dr. Wyatt refuses to let Meredith give up on therapy, Alex learns the truth about Rebecca's medical condition, the Chief insists that Erica perform a risky surgery on his mentor, and after receiving news of Burke, Cristina continues to do things contrary to her nature, going so far as cleaning her always-messy apartment, on 'Grey's Anatomy,' THURSDAY, MAY 15 (9:00-10:02 p.m., ET) on the ABC Television Network.  (Photo by Mitch Haddad/ABC via Getty Images)