The relationship between the Project Runway host and her bodyguard is "complicated," a pal tells PEOPLE

By Michelle Tan
August 31, 2012 06:00 PM
Jason LaVeris/FilmMagic

Heidi Klum recently went on Italian getaway to enjoy the sun, the sand – and possibly a new man?

While on a family getaway to Sardinia, the Project Runway host, 39, was spotted getting close to her bodyguard of four years, Martin Kirsten, sparking rumors that the two are dating.

Not exactly, a friend close to Klum tells PEOPLE.

“It’s complicated,” says the friend. “Their relationship is hard to define.”

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For Klum, who announced she was separating from her husband of seven years singer Seal in January, “this has been a difficult time,” says the pal. “Her inner circle of people she trusts is getting smaller and smaller and he is her No. 1 confidante.”

During their Italian vacation, Klum and Kirsten weren’t alone. They were seen playing on the beach with Klum’s children – Leni, 8, Henry, 6½, Johan, 5½, and Lou, 2½. Klum’s parents, Erna and Gunther, were also there.

Kirsten has also been spotted around New York City with Klum as she filmed Project Runway this summer.

In terms of finding a new husband, however, Klum has said it’s not a top priority. “I don’t know if I’ll get married again,” Klum told a German publication in July.

But she later added: “Although I really enjoyed being married. I’m a dreamer.”

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