Paula- mother of Bob's kids Fifi Trixiebelle, 12, Peaches, five and Pixie, four - was not at the 100,000 (Pound) premiere perty of Sly Stallone's new movie Judge Dredd at London's County Hall.
One witness said: "It was an amazing scene. We expected punches to be thrown, but Bob was very cool."
"He looked directly at Hutchence. But Bob didn't say a word - he just shook his head and smiled to himself."
A pal of the former Boomtown Rats singer said: "Bob's a tempermental Irishman and it's astonishing that he didn't try to throw a punch.
"I'm sure if they'd met a couple of months ago that's exactly what would have happened."
"But Bob's done some serious thinking over the last few months and seems to have some to terms with the situation."
"He still feels totally betrayed by Michael - they were good mates. But he's decided life must go on."