He continued: "We were more than best friends, we were more than soulmates. WE WERE SOME OTHER S---!! And I miss you so much. Super Black Love."
Diddy's representative Cindi Berger confirmed to Fox News last Thursday that Porter had died.
"Sadly, I can confirm the passing of Kim Porter. I ask that you give the families privacy at this time."
Porter dated Diddy for 13 years and the pair have three children together — 11-year-old twin daughters Jessie James and D'Lila, and son Christian Combs, 20.
She also shared 27-year-old son Quincy from her previous relationship with R&B singer Al B. Sure.