In her new memoir, "Uptown Girl," Christie Brinkley reveals that she was "so stunned" in 2006 to discover that her then-husband Peter Cook was having an affair with an 18-year-old.

Christie Brinkley reflected on her tumultuous marriage to Peter Cook — calling it the “one of the most tormented experiences I’ve ever had” — in her Uptown Girl memoir. When meeting Cook ...

Christie Brinkley recalls Peter Cook affair, son's reaction In "Uptown Girl," Brinkley writes that she learned about Cook's affair while giving a commencement speech at Southampton High School in ...