Meredith is happily munching on some Valentine's chocolate and looking at some test results on a computer when Bailey walks in, and she and Meredith have a slightly hamfisted expository conversation where it's explained that Meredith figured out that Janell has some sort of autoimmune issue and thinks that her antibodies might for some reason be attacking her brain. That's why Bailey is here and not Derek -- so that she can wind up busy and late for dinner. I mean, because Meredith's findings mean this is a job for general surgery rather than neuro. Bailey of course reminds Meredith she has plans and they have to solve the case quickly, just so that we know for sure some wrench will be thrown into things and she won't be on time. They start going over possibilities and it turns out Meredith was already doing some research and is pretty sure Janell must have a type of tumor called a teratoma.
Owen is sullenly looking at his own patient's scans while Christina stands a little ways away in dead silence. Their poor guy never even gets a name so to me he is now christened Sleepy Delivery Guy, SDG for short. Teddy walks in and Owen gives her the rundown -- SDG has a bunch of things that sound bad and all have some form of "card-" or "cardio-" in the name. Teddy immediately tells Cristina to book an OR and to find someone to assist, and very carefully Cristina tells her that Hunt has allowed her back on Teddy's service. Owen can't even look at them, which gives the impression that it's killing him to have given Cristina something she actually wants. But he can't have his cake and eat it to, and if he wants to not ever have a conversation with her again, that's what it takes. Teddy is equally careful not to act too excited, but she is cautiously pleased. Owen grumpily tells her they have to get into the OR as soon as possible and Teddy grumbles back, basically, "Duh."