"Stacy called it quits. She wants to have children and a family someday. She knows where George stands on that," a source told the magazine.
"They talked and they quietly stopped being a couple several weeks ago," the insider said. "They talk every day. They were friends before they started dating and they'll be friends after. It was a friendly [breakup]."
2014: The Year in Fashion [PHOTOS]
Meg Ryan, Kiernan Shipka to star in 'Fan Girl'