Dianna Agron and Alex Pettyfer Break Up

Glee star Dianna Agron and her British boyfriend, Alex Pettyfer, have reportedly ended their relationship after less than a year.

Us Magazine confirms that Agron, 24, moved out of the home she shared with Pettyfer, 20, last week.

News of the split has come as a surprise to many, considering that as of two weeks ago, the I Am Number Four co-stars were the subject of engagement rumors.

Last month, Pettyfer went on The Ellen Degeneres Show and discussed his relationship with Agron. "She's an amazing woman and she's got this old school, classic movie star elegance to her," he said. "She's amazing."

Agron spoke of Pettyfer in a similar manner, admitting to Sugar magazine, "Alex might see himself as a bad boy, but he's actually very sweet in real life."

While the split seems to have happened without warning, Pettyfer may have hinted at trouble to come while talking to reporters at the I Am Number Four premiere. According to E! News, he confessed that all of the attention on his personal life was "overwhelming."

Agron's rep refuses to provide E! with any comment about her client's personal life or the cause of the breakup.