Tulisa Contostavlos has shared rare insight into her failed relationship with ex-boyfriend and N-Dubz bandmate Fazer following her I'm A Celeb stint. Tulisa Contostavlos, 36, has shared rare insight into her failed relationship with ex-boyfriend and N-Dubz bandmate Fazer following her I'm A Celeb stint The singer found fame alongside the rapper and her cousin Dappy, and they dated from …