Buffy the Vampire Slayer, Season 2

Cordelia:
Buffy. You're really campaigning for bitch-of-the-year, aren't you?

Buffy:
As defending champion, you nervous?

Cordelia:
[scoffs] I can hold my own. You know, we've never really been close which is good cause I don't really like you that much. But you have been known to save the world on occasion, so I'm going to give you a piece of advice.

Buffy:
Which is?

Cordelia:
Get over it.

Buffy:
Excuse me?

Cordelia:
Whatever is causing the Joan Collins 'tude, deal with it. Embrace the pain, spank your inner moppet, whatever, but get over it. 'Cause pretty soon you're not even gonna have the loser friends you've got now.