Sienna Miller has hit out at claims she is dating rap superstar Sean Combs - but confessed she does have a new love. The actress is close friends with the hip hopper and the pair have been seen socialising together recently. Miller insists they are just good friends - and refuses to reveal the true identity of her secret beau. She says, "I am in love with someone but not Puff Daddy. He's just a good friend. Anyway he has a beautiful girlfriend."