SPOILER!!! Read at your own risk!
To be honest, Elena was the villain in all seasons. I don't care if you disagree with me, because she made two men fall in love with her at first, then she acted like the victim, even though she knows how much trauma the two brothers went through because they fell in love with a woman who looked exactly like Elana and she knew about it... This means she took advantage that they are only in love with Katherine who looks like her, so I'm saying that Elena took advantage of the two brothers' emotions. Even now Damon is married to her.