Grey's Anatomy, Season 12

Amelia:
Why are you shutting me out of this?

Meredith:
Because this does not concern you.

Amelia:
But it concerns you?

Meredith:
No, it doesn't. I made a promise that I would help him keep his head above water.

Amelia:
Promised who?

Meredith:
To Cristina. So I am watching him, and I am letting him be, and I am not sticking my nose...

Amelia:
What does Cristina have to do with this? You're in some sort of three-way trust circle with Owen and his ex-girlfriend?

Meredith:
Ex-wife.

Amelia:
God. Meredith, you are the most loyal person I have ever met to everyone except me. You're loyal to some woman halfway across the world...

Meredith:
Yes, I am.

Amelia:
...when I am right here. Cristina left you. I'm here. I'm your sister.

Meredith:
You are not my sister. Cristina is my sister. You are Derek's sister, and Derek is gone.

Penny:
Dr. Grey, I changed the mediastinal drains...

Amelia:
(to Penny, screaming) Get out! (to Meredith) Is this why you hate me? 'Cause I remind you of him? Does it help you to hate me? Asking you not to push me. Am I like her... something you cling to to keep the memory alive? You are such a child. You wrap her around you like some sick widow shawl. The widow Grey. She's okay. She's moving on. She'll never love again, but she's holding it together. That is crap. You've given up. You are crawling into your little hole and dying. You are hollow. And Derek would be sick about it if he could see it. He would be disgusted.

Meredith:
I want you out of my house.

Amelia:
Done!