Olsen broken-hearted over boyfriend-snatching

Mary-Kate Olsen says her heart is broken. She has taken a leave of absence from New York University to recover from former friend Paris Hilton's alleged theft of Mary-Kate's now-former boyfriend, Stavros Niarchos.

Mary-Kate says she's not talking to Hilton or Niarchos.

"I've pretty much been with someone my whole life, so this is a hard time for me," she says.