Authorities arrived at Porter's Los Angeles home on Thursday around 11.30am. They had received a call that someone at the home was suffering cardiac arrest. Porter and Diddy dated for 13 years and they share three children together. The couple first began dating in 1994 and split when Diddy cheated with Jennifer Lopez. They rekindled their relationship two years later but broke up once again due to his infidelity in 2007.But the couple remained friends through the years. They attended red carpet events together and Porter even made appearances on Diddy's short-lived reality show 'I Want To Work For Diddy'