(USATODAY.com) - Was it the twerking that did them in?
Or the texting?
Miley Cyrus, 20, and Liam Hemsworth, 23, have ended their relationship and called off their engagement, reps for both stars have confirmed for USA TODAY.
The buzz has long been brewing, but now it's official.
E! News reports that the split was "Miley's decision, after coming to grips with Liam being what she believed was less than faithful to her."
People.com says the two have been "living separate lives."
The couple - who met on the movie set of 2010's The Last Song - got engaged in May 2012. But there has been buzz for months that the relationship was on the rocks. In April, rumors surfaced that the wedding had been postponed.
Over the weekend, he was spotted at the Floyd Mayweather-Canelo Alvarez super welterweight title fight in Las Vegas, while she was busy unfollowing him on Twitter.
All of it comes amid an Us Weekly report that Hemsworth was texting January Jones, with whom he had been linked at an Oscar party in March. His rep called that report a "fabrication."
Meanwhile, Life & Stylehas a new story linking him to Mexican actress and singer Eiza Gonzalez on Sunday night at a Vegas nightclub.