Kim and Diddy dated on and off for 13 years from 1994 to 2007. They shared three children together -- twin daughters Jessie James and D'Lila, both 13, and son Christian, 22. She also had a son, Quincy, 29, from a previous relationship.
In one of his posts, Diddy shared multiple black-and-white pics of their family together.
"QUEEN KIM PORTER!! @ladykp ... IRREPLACEABLE ... LOVE YOU FOREVER," he captioned the shots.
"Even though we wasn't together, she was that type of person," Diddy recalled. "She would come over and...she was just like, ‘Come on, Puff. You gotta get up. You gotta get up out the bed. You gotta get moving. You gotta get up.'"