Kim, who was in a relationship of and one with Diddy for 13 years and shared three children with him, was found at her Los Angeles area home on Thursday unresponsive.
TMZ reported: "Diddy never stopped interacting with Kim, despite breaking up way back in 2007". "Sean constantly raved about what an unbelievable mother she was to their children".
Porter also has a 27-year-old son, Quincy, from a previous marriage, whom Diddy helped raise.
According to emergency dispatch audio obtained by TMZ, the call came in as a patient in cardiac arrest, while a source told the website Kim had contacted her doctor on Wednesday to complain she wasn't feeling any better.
Many in the hip-hop community were mourning her and offering condolences.
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Most GOP lawmakers, though, prefer McCarthy's more affable approach, and he remained favored to win Wednesday. The Democrats could in theory launch investigations into the president's administration and business affairs.
The two were out and about in L.A. just a day after the man's other longtime ex, Kim Porter, passed away shockingly.
Diddy is completely heartbroken over the death of his ex-girlfriend and mother of his children, Kim Porter.
The Los Angeles County coroner said an autopsy to determine Porter's cause of death is now pending.
Celebrities including Rihanna, 50 Cent and Missy Elliott have been paying tribute to her on social media.
"RIP Kim.... Your were a lovely person inside and out. Our hearts go out to him and his family".