Heidi Klum has become close with her bodyguard of four years, Martin Kristen — too close, according to the supermodel’s soon-to-be ex-husband, Seal. During a recent family getaway to Sardinia, Project Runway host Klum, 39, was spotted getting close to Kristen, wrapping her arm around his neck and touching his back. When Seal, 49, arrived at an airport in the U.S. August 31, TMZ asked the "Kiss From a Rose" singer to comment on Klum’s rumored relationship with Kristen — and that’s when he dropped another bombshell.