(CNN) Sean "Diddy" Combs has found the words to publicly grieve Kim Porter three days after her death.

The 47-year-old model and actress was found dead Thursday at her home in Toluca Lake, California. No information has been released about the cause of her death.

On Sunday, the hip hop mogul broke his silence over his ex's death with a heartfelt tribute on social media.

Kim Porter and recording artist Sean "Diddy" Combs.

"For the last three days I've been trying to wake up out of this nightmare. But I haven't. I don't know what I'm going to do without you baby. I miss you so much. Today I'm going to pay tribute to you, I'm going to try and find the words to explain our unexplainable relationship," he wrote in the caption.

Porter and Combs were a couple for more than a decade and remained close after they parted ways in 2007. They had twin daughters and a son together. Porter had an older son from a previous relationship.