Megan Fox and Brian Austin Green are going forward as solo acts. After 11 years together, five of them as a married couple, “Megan has separated from Brian,” an insider reveals exclusively in the new issue of Us Weekly. “They decided on it six months ago.”

Their romance has recently been plagued with issues. Though sources remain vague on the exact cause of their split, “things have been rocky,” says one source close to the parents of sons Noah, 2, and Bodhi, 18 months. (Green, 42, also has son Kassius, 13, from a previous relationship.) The pair were last photographed together grabbing lunch in Beverly Hills on June 9.

Their reps could not be reached for comment.

At the height of their relationship, they couldn’t help but gush over one another. When the Beverly Hills, 90210 alum guest starred on her ABC sitcom Hope & Faith in 2004, “it was like magic,” admitted Fox, who was just 18 at the time.

But by February 2009, Fox and Green, 13 years her senior, called off their three-year engagement. “Marriage isn’t a realistic goal for someone who is 23,” the Teenage Mutant Ninja Turtles actress, 29, told Us in June of that year. Still, the time apart worked in their favor. Green re-proposed in June 2010 and just 24 days later they said “I do” at the Four Seasons in Hawaii.

“I've never been more sure of anything in my life,” Green said at the time of their beachside vows. “It was the absolute perfect start to what we hope will be an amazing life together."

For more details on what drove the couple apart, pick up the latest issue of Us Weekly, on stands now.