Kevin McKidd, Sara Ramirez Kevin McKidd, Sara Ramirez

At the start of this week's Grey's Anatomy, Meredith (Ellen Pompeo) is in full needy mode, interrupting Alex (Justin Chambers) in the shower to tell him about her latest half-sister - and complimenting his junk in the process. (This scene proves that I could never be Meredith's roommate, let alone her person.) While hiding from the shower buddies, a jealous Jo (Camilla Luddington) tells Stephanie (Jerrika Hinton) that she's missing Cristina. Who agrees with her?

[A quick Cristina tangent: I really applaud the way the show is handling Cristina's exit with random shout-outs and references. Nothing worse than a show that writes out a character, and their friends and loved ones adopt a policy of never speaking of them again.]

Elsewhere, as Derek (Patrick Dempsey) and Amelia's (Caterina Scorsone) sibling rivalry infiltrates the workplace, they're not the only ones who are screaming at each other in the hallway. Callie (Sara Ramirez) and Owen (Kevin McKidd) are stressed to the max dealing with new patients from the military, including one soldier who is hoping to get a "robot leg" from Callie. She wants to reject him because he isn't a good candidate for a robotic leg, but Owen is reverting to his military loyalties and ordering Callie to keep him as a candidate, resulting in a screaming match between the two of them in the hallway.

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Arizona (Jessica Capshaw) is enthralled by Dr. Geena Davis and wants to be friends (or more?? I can't really tell), but Geena is only interested in a professional relationship with Arizona as her fellow. I'm very interested/skeptical to see where this relationship is going, and prayingthis isn't going to be another budding infidelity for Arizona. Callie asks Arizona if her Geena Davis obligations are going to trump their scheduled appointment with a surrogate. Of course not!, insists Arizona. (Obviously Arizona is going to miss this appointment.)

Back at the house, Alex and Meredith bond over a tequila brunch while questioning Maggie's (Kelly McCreary) motivations in contacting Meredith, and helping Alex prep for his board interview. Meredith also hashes out her problems with Derek — "He's walking around like a martyr," she slurs. Is he really, though? Yes, as a later conversation proves.

Alex convinces Meredith to hack into the hospital's records amid feeble protests. ("Cristina and I would just be dancing by now," she whines. I'm still rooting for an Alex/Meredith dance party by season's end.) "Are you ever ready for this stuff?" Alex wonders — and it's an apt question, seeing as how, for those keeping track at home, this is the third half-sister that has come into Meredith Grey's life unannounced.)

Anyway, the records prove Maggie right, and this is Meredith's "FML" face:

With his secret out, a sheepish Richard (James Pickens Jr.) shows up at the house to face Meredith's wrath that he's kept Maggie's secret for a week (Ed. Note: it's only been a week?). But he's angry at Ellis too and feels like he was robbed of having a daughter. Once they both calm down, Meredith tells Richard that he needs to tell Maggie the truth.

Owen and Callie have a moment when Owen admits that he's still a little raw over Cristina's departure and confesses that his tunnel vision on the military rehab center is his way of trying to get out of his own "darkness" and do something good. Lucky for him, Callie is forging ahead with the robotic leg candidate thanks to a little help from Jackson (Jesse Williams). She later offers to devote a chunk of her research money to a project that will focus on prosthetics for veterans.

Not faring as well are Dr. Shepherd and Ms. Dr. Shepherd. Things between them come to a head when Derek steals a patient from Amelia, telling April (Sarah Drew) to book an OR behind her back and scrub in. Needless to say, this does not go over well with Amelia — and even worse because the patient eventually dies. Derek admits to his sister that he feels like Meredith forced him to give up the NIH job and that's why he's being such a pill.

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My Calzona Doom Theory is proven wrong when Arizona makes the surrogate appointment (yay!). But, she interprets Callie's enthusiasm about her new project as an indication that maybe they should wait to have another baby, and they fight (boo).

Richard mans up and tells Maggie that he "knew" Ellis Grey (um, yeah, in a biblical sense), but Maggie cuts him off before he can say anymore. She calls him a "coward" and tells him she assumes he knew about her all along and just chose not to reach out.

While Richard's left standing outside, Meredith slinks into the hospital drunk and Derek is pissed. He throws it in her face in a "I stayed in Seattle for this?" kind of way, which is a little harsh in my opinion. After all, it's only been a week since she lost her person, Derek! (Seriously still can't believe it's only been a week.)

And, almost as an afterthought, the episode ends with Bailey (Chandra Wilson) finding out that she got the board position over Alex. He storms out in a rage.

What did you think, Grey's fans? Are you liking the Shepherd/-ess dynamic? Are you surprised/happy Bailey got the board position? And can Callie and Arizona get over their latest hurdle?

Grey's Anatomy airs Thursdays at 8/7c on ABC.