Heidi Klum and bodyguard boyfriend split Host Heidi Klum attends NBC and Time Inc. celebrate the 50th anniversary of the Sports Illustrated Swimsuit Issue at Dolby Theatre on Jan. 14, 2014, in Hollywood, Calif. Heidi Klum and her bodyguard boyfriend Martin Kirsten have separated, People reports. RELATED: Heidi Klum files for divorce According to the news source, Klum, 40, and Kirsten, 41, split up weeks ago after dating for a year and a half. Klum reportedly began dating Kirsten after filing for divorce from Seal -- her husband of nearly seven years. People goes on to report that the split also marks the end of their professional relationship, but they plan on remaining friends. "Life is about timing," a source told People. He was incredibly supportive and they were there for each other, but they're moving on now. They still have a great friendship.