Game of Thrones [Season 8, Episode 6]

— You freed your brother. You committed treason.
— I freed my brother. And you slaughtered a city.

— Love is more powerful than reason. We all know that. Look at my brother.
— "Love is the death of duty."
— You just came up with that?
— Maester Aemon said it a long time ago.
— Sometimes duty is the death of love.