Nikki Reed has apparently been banned from visiting her boyfriend Ian Somerhalder on The Vampire Diaries set because her presence is troubling to Somerhalder’s ex-girlfriend and costar Nina Dobrev.

Nikki Reed Banned From 'TVD' Set?

Dobrev wants Reed to keep her distance while she’s filming Vampire Diaries scenes with Somerhalder, according to Celebrity Dirty Laundry. Dobrev is apparently so put off by the presence of her ex’s new girlfriend that she’s reportedly been threatening producers that she’ll leave.

“Ian and Nikki’s relationship is causing a lot of drama, to the point where the producers have asked Ian not to bring Nikki to set when Nina is there because they are very worried about losing her,” a source told the outlet.

Dobrev and Somerhalder began dating after meeting on The Vampire Diaries set and dated off and on for a few years. They split in May 2013 and opted to remain friendly and professional on the set of their CW show. Not long after the split, Dobrev was linked to Dancing With the Star’s professional Derek Hough and others.

Somerhalder hadn’t been linked to anyone since the breakup until this past July, when he and Reed were spotted together a series of times. In a span of a week, they were seen out having dinner in the San Fernando Valley, again out to eat at Studio City’s Kiwami and jogging around Los Angeles.

Prior to dating Somerhalder, Reed was married to musician Paul MacDonald. Since the split, she, like Dobrev, had a short-lived relationship with Derek Hough.