We All Go a Little Mad Sometimes
The Vampire Diaries Season 4 Episode 6 (11/15/12)
Elena suffered from terrifying hallucinations on this installment of The Vampire Diaries, with the only fix being for a new hunter to officially rise up and take Connor's place. And who would that new hunter be?
Jeremy. He used an axe to kill a hybrid named Chris, which made Tyler very sad but freed Elena from her crazy thoughts.
Before this took place, though, Elena was on the verge of suicide. Damon was the one who came to her rescue and tried to talk her out of it because Elena still didn't trust Stefan. Damon did eventually tell her about the cure and Stefan's reason for protecting Connor last week, but it was too late.
At the conclusion of the hour, Elena admitted she was a darker version of herself and couldn't contain her feelings for Damon. She and Stefan split.