Diddy May Not Talk at Kim Porter's Funeral: Report

As his funeral projects materialize, Sean "Diddy" Combs still mourns the passing of his last love, Kim Porter.

Diddy, who shared four children with Porter, may be too upset to deliver his eulogy, according to TMZ. Faith Evans is expected to perform and Mary J. Blige plans to attend the evening.

The representatives of Combs and Evans did not immediately respond to PEOPLE's requests for comment.

Porter was found dead at home at the age of 47 on November 15. The Los Angeles County Medical Coroner said in a statement that the "cause of death had been deferred while waiting for new tests."

Porter will be buried in Columbus, Georgia, according to the death certificate obtained by The Blast.

RELATED: Kim Porter's son remembers his mother with a moving message: "You were too good for this silly world"

Earlier in November, a source told PEOPLE how hard Combs was to take the news. "It's the most terrible, saddest and most unreal situation for him. It's a nightmare, "the source told PEOPLE.

"He fights a lot. He does not sleep, "continued the source. "He has always had a very special relationship with Kim. Although he was not in love, he loved Kim. It was really true love and it is very bad right now.

ASSOCIATED VIDEO: Kimora Lee Simmons went to Kim Porter's home at his death: "I realized you would not want to come

On Friday, on Instagram, Evans wrote, "RIH KP." She added an emoji of hands in prayer.

On Sunday, Combs held a Porter Memorial ceremony attended by Pharrell Williams, Blige, Frenchman Montana, Kourtney Kardashian and others.

The day before, he broke his silence on Instagram while remembering Porter. "These last three days, I was trying to get out of this nightmare. But that's not the case, "he said. "I do not know what I'm going to do without you, baby. I miss you so much."

RELATED: The other ex-Diddy ex-homage to Kim Porter as they "promise to love and protect" her children

"Today, I will pay tribute to you, I will try to find the words to explain our inexplicable relationship," added Combs. "We were more than best friends, we were more than soul mates. We were some other S- !! And I miss you so much. Super Black Love. "