In the Grey's Anatomy Season 12 episode "You're Gonna Need Someone on Your Side," Callie and Arizona's upcoming custody fight is looming over everyone, as each of the exes starts to think about asking their friends to testify on their behalf. Callie, who's fighting to take Sofia with her as she follows Penny to New York, actually asks her fellow doctors, while Arizona struggles with the consequences of the fight she started. Meanwhile, Stephanie's new relationship with with MS patient Kyle Diaz (guest star Wilmer Valderrama) gets complicated when she must bring him back to the hospital, and Meredith pushes Amelia and Owen to take the leap, and really be together. Keep reading this Grey's Anatomy recap for highlights from Season 12, Episode 21, "You're Gonna Need Someone on Your Side."
Arizona Tells Penny to Back Off
Arizona is feeling the pressure of her upcoming custody fight with Callie, as well as her anxiety that she might have found something wrong with April's baby. Unfortunately for both Robbins and Penny Blake, Blake was assigned to Arizona's service that day. When Penny walks up while she's discussing the custody case with Alex, Arizona loses her composure and yells at Penny to back off and leave her alone!
Watch: Arizona Yells at Penny
April Needs a New Doctor
When Arizona sees a possible problem during April's sonogram, April flips out. She attacks Arizona for not finding the issue sooner, and demands an MRI so they can find out for sure if there's something wrong. Arizona reluctantly performs the procedure, which confirms that April and Jackson's baby is completely healthy. They're overjoyed, and April apologizes for being crazy, but Arizona offers her a list of new doctors. She can't be April's doctor and her friend, and she'd rather be her friend.
Watch: Arizona Can't Be April's Doctor
Stephanie Choose Surgery Over Love
Although she's only been seeing MS patient Kyle (Wilmer Valderrama) for a short time, Stephanie has grown attached. When he shows signs of a new hand tremor, Amelia decides to operate. She removes Edwards from his case, sending her to the waiting room like any other family member. The surgery goes well, but the experience reminds Edwards of the painful childhood she spent suffering through sickle cell treatments. Upset, she breaks up with Kyle, telling Jo she can't handle feeling so helpless. "So you chose surgery?" Jo asks. "No, I chose me!" Stephanie says.
Watch: Stephanie Breaks Up with Kyle
Amelia and Owen Are Ready to Screw Things Up
Amelia shows up at Owen's trailer to say that she knows she puts up obstacles and makes having a relationship difficult, but maybe they should anyway. "It's harder to love somebody than to walk away from them," she tells Owen. They both agree they'll probably screw things up, but they don't care anymore. They are ready to be together!
Watch: Owen & Amelia Go All In
Is it fair for Callie and Arizona to ask their friends to choose sides? Will Owen and Amelia screw everything up? Share you reactions to the events of this episode in the comments below, watch the full episode of "You're Gonna Need Someone on Your Side," and tune in THURSDAY, MAY 5 8|7c to see Episode 22, "Mama Tried," on ABC and don't miss the Season 12 Finale episode, "Family Affair," airing THURSDAY, MAY 19 8|7c!