Britney Spears’ pals reveal how cruel betrayal & shattered reunion with sons pushed star over the edge before DUI arrest

TO the outside world, Britney Spears' shocking arrest amid reports of heavy boozing is a grim echo of the singer’s darkest days. But behind the headlines lies a deeply tragic story of a desperate mother tipped over the edge by an emotional battle with her ex-husband, Kevin Federline, friends have claimed. A close pal of...