Suki Waterhouse has reflected on her “dark and difficult” split from Bradley Cooper. The 31-year-old beauty – who has a three-month-old daughter with partner Robert Pattinson – began dating the Hollywood superstar in 2013 and she admitted the aftermath of the end of her two-year relationship with the ‘Hangover’ actor, who is 17 years her senior, was “very isolating and disorientating” and took her a long time to recover from. She told the new issue of Britain’s Vogue magazine: “I really will say that I’m pretty strong at this point, but when something very public happens to you and the story b…