Sexy Heidi hides love with guard.
HEIDI Klum's relationship with her bodyguard is said to be "complicated".
The supermodel, who split from husband Seal in January, is believed to be dating her minder Martin Kristen.
They were spotted getting close on a getaway in Sardinia.
Pals say he is her "number one confidante".
A source revealed: "It's complicated. Their relationship is hard to define. "Her inner circle of people she trusts is getting smaller and smaller and he is her number one confidante."
Heidi, 39, and Seal announced the end of their seven-year marriage in January.
She said she was enjoying life as a single woman. The beauty added: "I don't know if I'll get married again. Although I really enjoyed being married.
"I loved our annual fairy tale weddings that were our big family parties.
"But sadly, it somehow didn't work out."
New love... Klum