Stefan and Damon in “Unfinished Business”

Stefan

I'm never gonna be rid of you, am I?

Damon

No, you're not. 'Cause in 1912, I showed you who you were, Stefan. In 1942, I gave you your freedom, and in 1977 I almost killed your best friend because it should have been you there to help me, Stefan. You owe me, and it'll take you an eternity to pay me back. An eternity of misery, brother. Just like I promised.