updated 03/09/2012 AT 12:15 PM ET
•originally published 03/09/2012 AT 7:40 AM ET
“I feel like I’m in the eye of a tornado,” she tells Elle in its April issue. “Sometimes I think a curve ball just comes at you. Instead of something straight that you can catch, it hits you in the head from the side that you didn’t expect.”
Klum, 38, understands that the couple’s separation seemed sudden – but she tells the magazine that things in her marriage with the singer, 49, weren’t always what they seemed.
“People don’t need to know who did what,” she says. “I don’t want to talk positive or negatively about the ups and downs that we had. Every couple goes through things. Unfortunately, we’re in the public, so the highs are out there. But I don’t think it’s necessary for – especially for our children – to have the lows being printed in magazines and talked about.”