| Kevin Federline's ex-lover Shar Jackson claims his marriage to Britney Spears ruined her family's life. Shar - who has two sons, four-year-old Kori and two-year-old Kaleb, with Kevin - is glad he has split from the 'Toxic' singer because it made her life a living hell. Shar, 30, said: "When they were together, somebody was always at my door with a camera wanting to know what I thought. "My older children, Cassie and Donnie, were always being asked about Britney, even by their teachers. They've h |