Kim Porter and Diddy Jeff Kravitz/FilmMagic A memoir believed to be written by Sean “Diddy” Combs’ late ex Kim Porter has been labeled a fake. Three of Diddy’s children, Christian, Jessie and D’Lila, whose mother, Porter, died at the age of 47 in 2018, slammed the recently published book, “KIM’S LOST WORDS: A Journey for…