Olivia Wilde'House' star Olivia Wilde is on the cover of the latest issue of Glamour magazine and talks about her marriage and divorce from her ex-husband Italian prince Tao Ruspoli.

The 'Tron: Legacy' actress, 26, and Ruspoli, 35, were married for eight years before they separated in February. Wilde filed for divorce a month later.

Wilde talks about the reason for her decision to divorce. "It was the hardest thing I've ever had to do.... We got engaged at Burning Man and married on a school bus. We were not conventional. I think the promise we always made was that if we are no longer happy, we won't continue. And it got to the point where I was working 10 months of the year outside of L.A. and he was doing incredible things in other places. We were no longer partners in crime."