'Grey's Anatomy' Season 10, episode 17 recap: Cristina imagines her life with and without Owen in 'Do You Know?'
So what was the decision she was mulling over? It all had to do with Owen. After a patient survived a car accident, only to be told he would be paralyzed from the neck down, Cristina asked the man if he wanted to have the ventilator removed, thus ending his life. "Do you know who you are? Do you know what's happened to you? Do you want to live this way?" Those questions lead Cristina to wonder what her life would be like if she chose to be with Owen ...
Scenario No. 1
First, the guy decides to have the ventilator removed after Cristina worked against all odds to save his heart. The depression makes her decide to go all in on a relationship with Owen when she sees him by the elevator. They go on to get a house, a dog, and even have two kids, something Cristina never wanted, but she did it to make Owen happy enough to give up a job opportunity in Germany.
Scenario No. 2
Rewind to the patient making a decision, and this time, he decides to live because of the love he has for his wife. Cristina and Owen celebrate by hooking up, and Owen promises Cristina he's okay with not having kids. But of course, years later he decides he does want them. They go back and forth in their relationship, over and over, breaking up and getting back together so many times Meredith can't even pretend to care anymore. Cristina focuses on her trial more than anything else, including helping the patient who decided to live, even when his wife asks for Cristina when he crashes during a trial experiment. Owen, stunned at Cristina's coldness, kisses the patient's wife after she tells him she wanted kids and can't have them anymore.
Rewind back to the patient making a decision, and this time, even after looking at his wife, he decides to die. Cristina walks out again in a haze, and sees Owen by the elevator for a third time. But she hesitates going to him, and thus, she's able to save Jackson's hand because she saw the cart about to crush it. Before she can walk up to Owen, Meredith intercepts her and asks her a question, and Owen gets on the elevator with a quick smile in Cristina's direction.