Is the Ian Somerhalder dating Nikki Reed report causing a rift with ex Nina Dobrev at the "Vampire Diaries" set? The "Twighlight star" meanwhile reunited with former husband Paul McDonald for a performance.

According to the Celebrity Dirty Laundry, it has gotten more awkward for the pair now that Ian Somerhalder is dating Nikki Reed.

"Ian may have broken up with Nina Dobrev eons ago in Hollywood years, but every source we've spoken to says that things are still incredibly awkward between them," it said, adding that they have managed to keep things professional but that was before the new development in his love life.

"No matter how 'professional' Nina Dobrev is, there is no way she's able to look upon her ex-boyfriend with his new girlfriend every week and be completely cool with it," the website said, adding that Nikki Reed has been visiting the set which only ratches up the awkwardness level.

The gossip site even claimed that Nina Dobrev might be leaving the show soon, and it's not just because of the Ian Somerhalder dating Nikki Reed reports, but because she grew tired of working on the same show for six years. Her contract will end by the end of this year.

Meanwhile, Perez Hilton said that even with the Ian Somerhalder dating Nikki Reed reports, the "Twighlight Star" is also good friends with her husband, "American Idol" alum Paul McDonald.

"The duo performed on Late Night with Craig Ferguson a few days ago and Nikki had nothing but nice things to say about her singing partner!" the website said.

Nikki Reed even shared her experience on Instagram: "Singing on Craig Ferguson with@thepaulmcdonald and some of the most incredible players in the world! Just want to take a second to thank our band! Erik Kertes, Paul Redel, Kiel Feher and Philip Krohnengold! Couldn't do it without you guys!"