Why Britney parted ways with Kevin

London: The family of pop superstar Britney Spears intervened and urged Spears to divorce her husband Kevin Federline.

Contactmusic.com reports that Spears and Federline got into an intense and ugly argument at Federline's new album's launch party, the row ending with Spears in tears.

A source says, "She came to support him and he treated her like s**t." Spears' family then came together and convinced her to end the relationship. The source added, "Kevin was never popular with anyone around Britney. She finally wised up."