The Vampire Diaries, Season 4

Rebekah:
So, vampire Elena is a trollop who likes bad boys, which explains why Stefan reeks of alcohol. But what it doesn't explain is why sweet, loving, innocent Elena could be so heartless towards Stefan. How could she hurt you like that? (pause) Answer, please.

Stefan:
She didn't know it at the time, but she was sired to Damon.

Rebekah:
A sire bond. Fascinating. And what do you think about that, Elena.

Elena:
I think you're sad and bored and in desperate need for a hobby.

Rebekah:
You're hiding something. 'Fess up.

Elena:
I didn't sleep with Damon because of his sire bond. I slept with Damon because I'm in love with him.

Caroline:
What does any of this have to do with the stupid cure?

Rebekah:
You're right. We got off point. Stefan, how do I find the cure? Unless you'd rather talk about Damon and Elena all day.

Stefan:
There's a professor. He knows where the cure is.

Rebekah:
Thank you. And, uh, where do I find this professor?