Elena and Klaus in “Unfinished Business”

Elena

What about your hybrids? You'll need more than this to create your army?

Klaus

These last few liters will have to suffice. You see... by attempting to kill us, my mother strengthened the bond between my siblings and I. I don't need hybrids. I have my family.

Elena

If you believe that, why take my blood at all? [pause] You want a back-up family. You know that your siblings will never trust you again.

Klaus

You know Stefan blames me for trying to tear him from his brother? But I think we both know who really came between them. You. That's why you won't choose. You know once you pick a Salvatore, you'll destroy their bond. Consider this me doing you a favor. Once you're dead, you won't have to choose. No broken hearts. Their family stays intact. But just between us girls, who would you have picked?

Elena

Rot in hell.

Klaus

Hm. You're welcome.