A source previously told PEOPLE that the music mogul, 49, felt “devastated and shocked” by Porter’s death.
“He and Kim were still very close friends and co-parents even though their romantic relationship didn’t work,” the source said.
“They were still a family.”
On Thursday, Porter, who was a model and actress, was found dead in her home. She was 47.
The Los Angeles County Sheriff’s Office confirmed Porter’s death in a statement explaining that officers responded to a death investigation at 11:40 a.m. local time in Toluca Lake, California, where they found a female unresponsive at the residence.
Porter was pronounced dead at the scene.
Her cause of death remains undetermined at this time. According to an emergency dispatch call posted by TMZ, the call came in as a cardiac arrest. A source told the outlet she had been suffering from pneumonia for weeks.
Combs and Porter began dating in the ’90s and split for good in 2007 after years of an on-and-off-again relationship. Together, the pair had three children: son Christian, 20, and 11-year-old twin daughters D’Lila Star and Jessie James. Additionally, Combs raised Porter’s eldest child, Quincy, 27, and considers him a son.