Ian Somerhalder and Nina Dobrev ended their three-year relationship. The cast of The Vampire Diaries decided to part ways. The biggest reason for this was that Ian Somerhalder started dating an old friend of Nina Dobrev. According to reports, Nina left The Vampire Diaries after the breakup. She said that she felt uncomfortable working with Ian. Nina is not looking for big roles, but she does not like working with Ian on camera.