Washington, January 28 : Heidi Klum has split from her bodyguard boyfriend Martin Kirsten after dating for a year and a half.

Sources have revealed that the 40-year-old model, who started dating Kirsten a few months after she filed for divorce from Seal , will always be grateful to him for being there for her during a challenging time in her life, People Magazine reported.

Insiders added that the pair has ended their professional relationship and are no longer working together, although they will remain as great friends. (ANI)