The Vampire Diaries didn't just have countless couples on screen - many cast members found love with their costars or members of the extended franchise. After The Vampire Diaries debuted on The CW in 2009, viewers quickly got invested in the supernatural events taking place in the fictional town of Mystic Falls, Virginia. At the center of the drama was Elena's (Nina Dobrev) love triangle with Stefan (Paul Wesley) and Damon (Ian Somerhalder). Off screen, Dobrev and Somerhalder sparked a romance in 2010 and continued to date for three years.