Miley Cyrus & Liam Hemsworth's engagement is officially over

Oh no! It's official! Miley Cyrus and Liam Hemsworth  have for realz called it quits!!

It started when Miley stopped following her fiancé on twitter.

Miley, 20, and Liam, 23, began dating in 2009 after starring together in 'The Last Song', and became engaged on May 31, 2012.

Sources told E! News the split was "Miley's decision, after coming to grips with Liam being what she believed was less than faithful to her."

Back in February, Star magazine first reported that Liam got "hot and heavy" with "Mad Men" star January Jones at a pre-Oscars party at the Chateau Marmont hotel. Those cheating rumors flared up again last week, when Us Weekly reported that Liam has been sexting the 35-year-old actress. A rep for Hemsworth denied the magazine's claim, telling E! News, it was nothing but "tabloid fiction.

After all the rumors of Liam's  and January Jones and Miley's cheating with Mike Will Made It, all the noticeable distance and unhappy faces and ringless fingers, it's finally really over.

Reps for both of the young stars have confirmed the split.

So sad!