The Modern Family star appeared at the 2014 Primetime Emmy Awards without a date on Monday night and it has now been reported that she and her beau apparently decided to call time on their relationship because it just wasn't working, Us Weekly reports.

Sarah Hyland rocks a crop top to the Emmys >>

"Sarah's doing fine. It didn't work out," a source revealed to the mag. "She's young. They decided they would be better off as friends."

And although the beauty was dateless to the 2014 Emmys, she and her Modern Family family had plenty to celebrate because the show took home the gong for Outstanding Comedy Series again.

Hyland and Prokop first began their relationship after meeting at an audition for High School Musical 3: Senior Year in 2008. And things looked to be pretty serious at one point, because they lived together and shared an adorable pet dog, Barkley Bixby.

VIDEO: Sarah Hyland is a fan of 13-year-old Kiernan Shipka >>

In fact, the former couple often looked loved up when spotted out together and there was much speculation as to when an engagement would occur. The Geek Charming actress even gushed about her man during an interview with E! News, referring to herself as "practically married," to Prokop and saying, "We have a dog and live together, so I'm OK with that."

Oh, well, at least Hyland still looks happy, as she was all smiles on the night of the Emmys and she stunned in a Christian Siriano crop-top-and-full-skirt combo.

Sarah Hyland groped by fan at meet and greet >>