Alex Pettyfer Dianna Agron Split

They might be one seriously steamy onscreen couple, but what the heck happened to Dianna Agron and Alex Pettyfer once the cameras were turned off?

Agron, who plays bubbly cheerleader Quinn on Glee, has called it quits with her 20-year-old British boyfriend, Us Weekly snoops scooped on Friday. The I Am Number Four co-stars had dated for just over a year before an unnamed source close to the couple revealed they’d broken up.

Alex recently gushed about his former girlfriend to daytime chat show host Ellen DeGeneres. “She’s an amazing woman and she’s got this old school, classic movie star elegance to her. She’s amazing.”

Though the couple have been the product of engagement rumors over the past few months, things apparently weren’t all that “Gleeful” behind closed doors.

Could Pettyfer’s Beastly co-star Vanessa Hudgens? Grab your popcorn! We feel a scandal coming on…