Melisandre: Do you feel my heart beating? This power in you, you resist it, and that’s your mistake. Embrace it. The Lord of Light made us male and female. Two parts of a greater whole. In our joining there’s power. Power to make life, power to make light, and power to cast shadows.

Jon Snow: I don’t think Stannis would like that very much.
Melisandre: Then we shouldn’t tell him.

Jon Snow: I can’t.

Melisandre: Why?

Jon Snow: I swore a vow. I loved another.

Melisandre: The dead don’t need lovers. Only the living.

Jon Snow: I know. But I still love her.

Melisandre: You know nothing, Jon Snow.

From Game of Thrones – Season 5 Episode 4: ‘Sons of the Harpy’ (5×04)