Mulder says her life changed in 1993 when she was shuttling from airport to airport with almost no time at home. She then met real estate developer Jean-Yves Le Fur in the waiting lounge of a Paris airport. They soon became engaged.
On 11 December 2002, after suffering for years from chronic depression, Mulder went into a coma after she overdosed on sleeping pills in an apparent suicide attempt. She left no note. She was rushed to the American Hospital in Neuilly after neighbors found her passed out on the floor of the Paris apartment on exclusive Avenue Montaigne where she was staying with friends. Mulder's parents flew from the Netherlands to be by her side along with former fiancé Jean-Yves Le Fur. Le Fur was reportedly one of the people who found Mulder unconscious after arriving at the apartment after Mulder had not answered several of his telephone calls. She awoke from her coma the next day.