Sienna's monogamy issues

Sienna Miller tells People:

"I don't know, monogamy is a weird thing for me. It's an overrated virtue, because, let's face it, we're f–ing animals."

She says she was upset by the scandal – Law admitted he'd cheated with his kids' nanny – because it drew attention away from her acting.

"Everything happened in the wrong order," she says. "You become very known for being someone's girlfriend, and all of a sudden there's all this hype and buzz for all the wrong reasons."