[s2e14] Crying Wolf -

Stefan confronts Elena about her willingness to die for the sacrifice. He argues that her "heroism" is actually a tragedy.

Damon attends a historical society tea to confront Elijah. Elijah demonstrates his power and makes it clear that Damon cannot stop him, though Damon continues to look for a way to kill the Original vampire. Character Reports Elena Gilbert & Stefan Salvatore [S2E14] Crying Wolf

Bonnie, with the help of Jeremy and Caroline, uses a "hypnosis" spell on Luka to learn the truth about Elijah’s plan. They discover that Elijah intends to let Klaus kill Elena in the sacrifice so that Klaus becomes vulnerable enough to be killed afterward. Stefan confronts Elena about her willingness to die

Elena eventually admits she doesn't want to die but feels she has no other choice to save her loved ones. Tyler Lockwood Elijah demonstrates his power and makes it clear

Elena and Stefan's getaway turns deadly when Jules and her pack track them down. Stefan is captured and tortured with wooden bullets while Brady attempts to take Elena.

Torn between his loyalty to his friends (specifically Caroline) and his new identity as a werewolf.

The only time an Original as powerful as Klaus can be killed is during the transition phase of the ritual when he is vulnerable.