After splitting from her longtime husband, Seal, Heidi felt safe in the arms of Martin Kristen. But that shouldn't be surprising, as Martin is the supermodel's bodyguard. "He's been with our family for the last four years. He's cared for our entire family, mostly for our four children, helped us tremendously," Heidi told Katie Couric in September 2012. "He's a great man, and we just got to know each other from a completely different side."