Holly Madison is finally revealing what caused her years-long feud with her “Girls Next Door” costar Kendra Wilkinson. “Kendra and I don’t speak,” Madison said on Thursday’s episode of the Hot Goss podcast, “but I’m not opposed to speaking. We had a falling out, but it was after the show.” Madison, 46, blamed their “falling out” on Wilkinson’s desire to stay relevant. 6 Holly Madison shared theories on why she and Kendra Wilkinson haven’t spoken in over a decade.