Nikki Reed and Ian Somerhalder breaking up? The Vampire Diaries star and the Twilight actress have only been dating a few months, but rumors suggests Reed and Somerhalder are fighting because Ian mad about Nikki's relationship to her ex-husband, Paul McDonald.

According to the website Rumor fix an insider said "It's driving Ian crazy. He's having a hard time trusting that nothing romantic is going on."

Though they also quoted a source saying the story is "completely not true," and that Ian and Nikki "are solid."

Nikki Reed and her ex-husband Paul McDonald were reunited at Bloomingdale's The Pink Party in New York City last Thursday. According to the Daily Mail, they performed their song, "Now That I Found You."

Nikki sang and her American Idol alum ex-husband accompanies her on the guitar. They performance was in support of The Breast Cancer Research Foundation, The Carey Foundation and the Marisa Acocella Marchetto Foundation, which all help breast cancer victims, survivors and their families.

Nikki and Paul divorced in May after two and a half years of marriage. Nikki and Ian were first caught together at a Los Angeles farmer's market a few months later in July. They were inseparable and packing on the PDA at Comic-Con last year.

Nikki Reed knows how to keep a vampire. The actress recently designs a dog leash and collar for Gilt which goes to the ASPCA. Nikki Reed designed the exclusive "Found My Animal" Dog Leash And Collar.

Nikki Reed told Us Weekly "Acting is my profession . . . my craft. It inspires me. [Caring for animals] is like my second job. It's my other passion."

"As long as I can remember, I've been donating and volunteering for the ASPCA or local shelters. I couldn't be more excited that Gilt wants to shine a light on animal adoption, and I love what Found My Animal stands for," Reed said.