Supergirl, Season 2

Kara:
How you holding up?

Lena:
When Lex was arrested, my mother was there. My mother saw her son dragged, bleeding and raving, from her house, and when I got there, Lillian was tidying his room like he'd been away on a business trip. That's how I feel: cold and calm. Until I think about Beth dying in jail, and then I feel warm for a minute.

Kara:
You're in shock, Lena.

Lena:
I know. Loss does strange things to my family, and I've lost a lot of people.

Kara:
Well, you're not gonna lose me.

Lena:
I think when I feel things again, I'm... I'm gonna be very, very afraid. About the person I might be.

Kara:
[putting an arm around Lena] You don't have to be afraid. I'm right here. And I'm not going anywhere.

Lena:
Heh. Promise?

Kara:
I will always be your friend. And I will always protect you. I promise.