Credit: Bob D'Amico/ABC © 2014 American Broadcasting Companies, Inc. Photo: Callie Torres (Sara Ramirez)

Last night’s episode of Grey’s Anatomy (Episode 15: “Throwing It All Away”) left Callie (Sara Ramirez) and Derek (Patrick Dempsey) at odds. Thanks to Derek’s new presidential project, he’s gotta take the sensors he was using for their brain mapping project with him to the new job — meaning Callie can no longer use them.

As you can imagine, she was pissed… and in a new sneak peek for next week’s episode (Episode 16: “We’ve Gotta Get Out of This Place”), we get to see Callie’s anger to the fullest extent.

In the clip, Callie totally goes off on Derek about taking away an important piece of the project she contributed to, and Derek’s not having it. Although he says he feels terrible about it, he tells her case against him won’t hold up in court because his name is all over the sensors’ patent.

“It’s the wrong thing to do and you know it. You’re not used to answering to people and now you have the president calling you on the phone and you’re afraid to say no,” Callie says. “Even though you know this is 100% wrong.”

Ouch!

Derek’s project with the president is huge, but he’s had to upset a lot of people on the way there. Not just Callie has been affected by Derek heading up the initiative — Meredith (Ellen Pompeo) was also pretty unhappy at first when Derek took back his promise to let her shine this year while he took care of the kids.

Whether Callie decides to bring the matter to a judge or not, we’ve got a feeling there’s no happy ending here just yet.

How do you think Callie and Derek’s fallout will play out? Share your thoughts below!

Source: YouTube