Katherine Shwarzenegger photographed for a feature in Harper's Bazaar, Sept. 2011. (Nikolai Von Bismarck/Harper's Bazaar)

Katherine Schwarzenegger, the oldest daughter of Maria Shriver and Arnold Schwarzenegger, is talking about her parents’ split.

“My parents always really sheltered us, so when [the separation] started happening, it was like everything came out of nowhere overnight,” she says in the September issue of Harper’s Bazaar. “I would go out to lunch, and literally 20 people would come and scream at me. And I’m like, This is so inappropriate; you’re trying to provoke me to have an attack and say something crazy.”

Schwarzenegger, 21, fled to London to escape the attention and said she didn’t bother to read stories about the scandal. She confesses she’s always been “way closer to my mom. . .I’m close to my dad, but they’re totally different kinds of relationships.”

The cover of the September, 2011 issues of Harper's Bazaar. (Courtesy of Harper's Bazaar)