While Teddy reads a magazine in the lounge, Callie decides to give in and pour herself a cup of coffee. She's incredibly self-satisfied until Arizona walks in just as she's finishing her pour, but she's armed this time and immediately says that the studies she read showed birth defects in rats, and she's not a rat. She tries to get Teddy involved, but Teddy wisely keeps flipping through her magazine, though she's obviously watching the entire exchange. Arizona reminds her that they took a vote but Callie points out that she has to fix multiple fractures, which is a whole different ball of wax, and so she needs her caffeine. Realizing she won't win a straight-up argument, Arizona just sits down and calmly tells Callie fine, it's her choice, she's an adult who can make her own decisions. Callie is at first satisfied but then can't actually bring herself to take a sip, and she finally thumps the cup down in front of Arizona, gripes about how unfair this all is, and storms out. Arizona's incredibly smug and Teddy points out that for someone who was on the record for years about not wanting to be a mother, she's got the guilt trip down perfectly. Arizona just claims she's entitled to her opinion, and that after being left out of so much at the beginning, she's going to make sure she has a say in things from here on out. She then takes a sip of the coffee and closes her eyes in bliss as she notes how tasty it is. So she took Callie at her word and isn't giving up the caffeine in solidarity, it seems.
Cristina and Mere are looking over all of Ellis' research and marveling over her smarts as Jackson and Alex mock Mere's other study by playing the truck-cabin-spoon memory game. The girls just ignore them and Meredith admits she doesn't know yet if she's going to join this study. Cristina admits to being jealous even though she's about to do a heart transplant on a baby that hasn't even been born yet. Alex thinks Cristina is just rubbing his nose in it but she points out that he only has himself to blame for the fact that he's no longer on the case. He seems to make a decision from this and declares that he's been on this case for a month, so he's not just going to take the boot now. He storms out as Lexie walks in and demands that Meredith come see Thatcher. Mere brushes her off until mentions the tattooed girlfriend, which finally gets Meredith's attention. Jackson tries to act sly as he asks Lexie if this is bothering her and if she wants to talk about it, but she's too busy wallowing in righteous indignation to notice how obvious his question was and just shoots him down, so he leaves to go work on his own surgery. Meredith claims she's too busy to visit their dad but Cristina finally convinces her, curious to see his young fiancée. Lexie spits that they aren't engaged but Cristina asks, "Are you sure?" It seems incredibly pointed and I was sure this meant she'd find out that they are, in fact, engaged, but then that never went anywhere. It still feels like it has the potential to do so, but if it does it won't be in this episode. Meredith finally agrees to go.