Kate Moss and Pete Doherty

Things turned really sour for exes Kate Moss and Pete Doherty.

The supermodel and Libertines rocker dated on-and-off between 2005 and 2007, but Pete admits that their high-profile romance was never really "sustainable".

The 43-year-old musician - who battled drug addiction during their relationship - claimed: "There were all sorts of incidents."

He added: "She was really unhappy about things like that. It became a running battle, really, that relationship. It was always the same, for all those years: highs and then crushing, violent lows. It was not sustainable."