updated 06/01/2010 AT 8:00 PM ET
•originally published 06/01/2010 AT 4:00 PM ET
Heidi Montag and her husband, Spencer Pratt, have weathered many storms together – but now it’s time to spend time apart, says Montag.
“I needed some alone time,” Montag, 23, tells PEOPLE exclusively, confirming reports that she has moved out of the Pacific Palisades, Calif., home she shared with Pratt. “There are so many lies out there about me and I just needed space – even away from my husband.”