At the firehouse, the fighting is still going on. Owen can't see what the point is of telling Cristina every detail especially since he knows it will only hurt her. She thinks that she has a right to know and tells him that if he's not going to tell her, he can get out. The phone rings and he's absolutely appalled that she goes to answer it but Cristina yells back that Meredith has called five times and if Cristina doesn't answer Mere will just come over to make sure they aren't dead from the flu. Mere asks how she is feeling and Cristina manages to mumble that she's fine, but tears are streaming down her face. Mere guesses that Owen is there and Cristina makes a comment that he is sick too; Mere can't help herself sniping, "Oh, I bet he is." If Cristina didn't think Mere knew about the affair before, she must know now that she does. Mere tries to talk to her but Cristina cuts her off and hangs up. He then asks if he's staying or going but she tells him that is up to him. He sighs, puts down his coat, and picks the story back up again, telling her that it was the day after they quit therapy that he met Nancy at the hospital. I'm just calling her Nancy to avoid pronoun hell, though -- Owen is All Pronouns, All The Time.
Remember how horrible it was to watch these two in therapy? Well we get to do it again for a couple of moments, specifically, we see Cristina yelling at Owen to be her Person and then see Owen reply sadly to be his Person. Owen is then at work when a trauma patient is brought in and when he calls out asking if anyone is with the patient, Nancy runs in and says she is. Again, we freeze the shot.
Cristina and Owen are trying to do normal things: he's doing the dishes, and she is making tea while he tells the story. Cristina interrupts to ask what the woman's name was and after he thinks a moment, he admits he can't remember. Duh, Owen, she's called Nancy -- you could have just asked me that.