Lexa and Clarke Griffin in “Unfinished Business”

Lexa

I lost someone special to me, too. Her name was Costia. She was captured by the ice nation, whose queen believed she knew my secrets. Because she was mine they tortured her, killed her, cut off her head.

Clarke Griffin

I'm sorry.

Lexa

I thought I'd never get over the pain, but I did.

Clarke Griffin

How?

Lexa

By recognizing it for what it is: Weakness.

Clarke Griffin

What is? Love? So you just stopped caring about everyone? I could never do that.

Lexa

Then you put the people you care about in danger, and the pain will never go away. The dead are gone, Clarke. The living are hungry.