The Vampire Diaries, Season 2

Stefan:
You knew that they were going to burn the vampires in the church?

Katherine:
I practically lit the match back there.

Stefan:
They were your friends. They were your family. You just sold them out?

Katherine:
Without blinking.

Stefan:
So you sent 26 of your friends to their death just to fake your own? No. You were running from something. What was it?

Katherine:
Everyone has a past, Stefan. Mine needed to stay far, far away. But thanks to you, my plan nearly failed before it even began.

Once George told me that the roundup was imminent, I made sure I could see you one last time. But your father used your love for me against you. He poisoned your blood. We didn't have long. Then Damon, being Damon, nearly ruined everything.

Stefan:
We came for you. We tried to save you.

Katherine:
I didn't want to be saved.

Stefan:
Then Damon and I died for nothing. For nothing!

Katherine:
No, Stefan! You died for love!