Though she's been notoriously private about her personal life in the past, the Jupiter Ascending star opens up about her friendship-turned-romance with Ashton Kutcher in Marie Claire's July 2014 issue.
"One day, it just changed. All of a sudden, it wasn't the same," Kunis, 30, tells the magazine of her former That '70s Show co-star, 36. "And I was really proud of myself for acknowledging that."
After a two-year courtship, Kutcher decided to ask Kunis to be his wife a few months ago. "The best day of my life so far was the proposal," the Friends With Benefits star says proudly. "I cried. I was a mess."
"Not to discredit any relationships in my past," Kunis continues, "but this relationship is different."