Jeremy wants to help Damon get to the bottom of Katherine and werewolves and everything plaguing Mystic Falls. He mostly does so via the Internet.
Damon went all Jack Bauer on Mason in "Plan B." He ended up tearing the werewolf's heart out.
Caroline and Bonnie share a moment in this scene. It's courtesy of the episode "Plan B.

The Vampire Diaries Season 2 Episode 6 Quotes

Stefan: Elena and I are taking a pause.
Jenna: That's not what it sounded like this morning.

Your search for life's purpose is as obvious as it is tragic.