A MYSTERY woman seen leaving a celeb nightspot with Jack Grealish is ex-model Emma Silverton, The Sun on Sunday can reveal.The Manchester City and England star was followed by Emma out of the Chiltern Firehouse in central London.Ex-model Emma Silverton was seen leaving a celeb nightspot with Jack GrealishSplashGrealish was followed by Devon-born Emma out of the Chiltern Firehouse in central London[/caption]InstagramGrealish with girlfriend Sasha Attwood, who gave birth to his daughter in September[/caption]New dad Grealish, who was with pal Jaydon Gibbs, was heard shouting, “She’s not with me”, before doubling back inside. He re-emerged to get into a chauffeur-driven car.Witnesses said Emma then popped her head out of the window of a black cab to ask: “Are you guys coming or not?”Gibbs, whose twin Kieran is a former Arsenal defender, told the cab driver to “follow that car” before getting inside.The next day Grealish, 29, celebrated Valentine’s Day with girlfriend Sasha Attwood, who gave birth to his daughter in September.Emma used to work as a hostess at the Chiltern Firehouse, looking after high- profile guests discreetly.The Brit was on the books of a New York modelling agency for six years and worked for designers including Alexander McQueen, Issey Miyake, Sonia Rykiel and Burberry.For the last three years 5ft 11in Emma has worked as a freelance photographer, and on film and music video projects.Jack and influencer Sasha, 29, share a £6million mansion in Cheshire.Emma was approached for comment.