At the end of season 6, the two plan to become human, get married, and have children together, but their dream is abruptly compromised by Kai, who puts Elena into a magical coma.
Much of Elena's story revolves around her relationships with vampires Stefan Salvatore and his older brother, Damon.It is revealed that Elena is a Petrova Doppelgänger, which is thus responsible for her being identical to her ancestor, Katherine Pierce (née Katerina Petrova).In the season 8 finale, she is revealed to be happily married to Damon.Executive producers Julie Plec and Kevin Williamson agreed that in the book series, Elena was turned into a vampire too early, which was around page 200 of The Awakening.Dobrev said, "The writers heard me speaking Bulgarian to my mom on the phone while I was on set one day. Executive producer of the television show, Julie Plec, said the Elena from the books was "really kind of selfish".
In The Vampire Diaries, Elena's "selfishness" in the books as a human was never explored, because it "didn't ever feel like a characteristic" the show wanted for their heroine. Williamson told her that "the angle we wanted to go for was the relatable, nice, girl next door, who the audience roots for".
Dobrev went back home to Canada, yet, still wanting the part, she submitted a videotape audition, which saw her cast as Elena Gilbert.
Additionally, she said "I think I have one of the coolest characters on the show — I get to play two completely different people on opposite sides of the spectrum and I just have so much fun doing it". However, in the television series, she is Bulgarian, as is Dobrev, who can speak the language fluently .
But we always knew that her journey would take her there eventually".
In what was described by the International Business Times as "the moment Vampire Diaries fans have been waiting for", Elena had to choose whether to be driven to Damon or Stefan to say goodbye to.
She took the cure and became human again towards the end of the sixth season.