The sacrifice later takes place, but Elena is saved because Stefan, ‘sacrificed‘ himself (Didn't really sacrifice) for her after Bonnie magically enchants him. However, her Aunt Jenna is turned into a vampire and, as part of the sacrifice, is killed by Klaus, leaving Elena without a guardian. In the season two finale, while Damon is dying from a werewolf bite, she forgives him for forcing her to drink his blood and kisses him. Damon is cured by drinking Klaus' blood. However, in order to convince Klaus to give his blood to Damon, Stefan had to turn into his "Ripper" self and accompany Klaus. In season three, Elena does everything in her power to make Stefan regain his humanity, which he switched off to satisfy, and tolerate, Klaus. She grows closer to Damon while working together to save Stefan and try to defeat Klaus, eventually sharing a kiss. She later admits to Stefan that she has feelings for Damon as well, but that she never stopped loving Stefan. It is eventually revealed that Elena met Damon the night of her parents' death, though he compelled her to forget. She eventually chooses Stefan in the season finale but before she can tell him, Elena drowns while having vampire blood in her system; she then awakens as a vampire in transition. In season four, Elena must decide whether to die or to feed on human blood so she can fully transition into a vampire. After realizing Stefan's desperation to keep her alive, Elena completes her transition. She claims that choosing Stefan was the best choice she'd ever made. However, their relationship ends due to her heightened feelings for Damon. Damon later realizes there is a sire bond between them, complicating the truth behind their relationship. Damon makes Elena turn off her humanity to avoid her grief when Jeremy is killed searching for a cure for vampirism. Elena becomes ruthless without her emotions. When she turns on her emotions again, her sire bond to Damon has been broken, though she remains in love with him. During a confrontation with Katherine, Elena shoves the cure down Katherine's throat, forcing her to become human again. In season five, Elena starts at Whitmore College after spending the summer with Damon. She is kidnapped and experimented on by Wes Maxfield, and learns that her father experimented on vampires. Later, when Katherine is about to die as a result of the past 500 years catching up with her, Katherine uses a spell to possess Elena. Elena's friends trap Katherine when they realize this.