“Things were so unhealthy and unhappy for both Jordan and me, I knew I had to end it,” the Burlesque star, 29, tells People in an exclusive interview. “I really didn’t want to hurt Jordan, and I felt torn about splitting our family up. When you’re unhappy in your marriage, your children are the ones who suffer, and that’s the last thing I wanted for my son. He’s the kind of person you could spend hours with on the phone talking to and all of a sudden it’s daylight,” she says.