when does elena come back from being katherine
No Exit (The Vampire Diaries) Damon wakes up chained on the Salvatore house's basement. Stefan is there and Damon tries to warn him that because of his cravings, one day he will kill him but Stefan tells him that they will find a solution. Damon points to Stefan that "Elena" provoked him to feed on her and then she kicked a stake towards him so he will kill him. Stefan does not believe that Elena would want that, he locks Damon up and gets upstairs where Caroline is. The two of them discuss what happened between Stefan and "Elena" and Caroline also tells him about Nadia and Matt and the text he sent to her. From Matt's text, who used "K" and not "E", they put the pieces together and they realize that Katherine is in Elena's body.
Us the Duo On June 5, 2018, they auditioned for America's Got Talent, where they advanced to the next rounds and got eliminated at the semifinals.
Elena Gilbert In season three, Elena does everything in her power to make Stefan get his humanity back, which was turned off by Klaus as payment for saving Damon from a werewolf bite in the latter part of season two. Meanwhile, she grows closer to Damon while working together on saving Stefan and trying to defeat Klaus, eventually even sharing a kiss. She later admits to Stefan that she has feelings for Damon as well but that she never stopped loving Stefan. While in Denver together, Elena kisses Damon, later telling him that she doesn't know how she feels about him. It is eventually revealed that Elena met Damon the night of her parent's 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. During the last moments of season three, she awakens as a vampire in transition.
Kensi Blye In season six, she and Deeks agree to make their relationship official.