A source has told Page Six that the real reason why Sienna Miller and Jude Law broke up is because he wanted to focus more on his family. Apparently, she was too much of a party girl for him. Did he come up with this revelation before of after he boinked their nanny? Talk about trying to win the sympathy vote by bringing the kids into the story.

"She was just too wild for him. She partied too much. He is a devoted father of four children and she always wanted to go out constantly. He was just done with her."