Miley Cyrus, Liam Hemsworth, Engaged

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2013 hasn't been the kindest year to many Hollywood couples, as some of the most glamorous, high-profile pairs have decided to go their separate ways.

Twerking queen Miley Cyrus and her Hunger Games heartthrob Liam Hemsworth called off their engagement over the summer shortly after her MTV VMA's performance became the talk of the Internet.

But these two weren't the only ones who didn't make it down the aisle…Britney Spears and her former fiancé  Jason Trawick split in the beginning of the year.

"Jason and I have decided to call off our engagement," Spears said in a statement at the time.  "I'll always adore him and we will remain great friends." 

Kristen Stewart, Robert Pattinson

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And these two couples weren't alone. Twilight stars Robert Pattinson and Kristen Stewart broke up after more than three years together.

Multiple sources told E! News that the brunette actress was "so sad" and "heartbroken" in the wake of the split.

But fortunately for Robsten fans, things seem to be a quite amicable between the two now.

For more on these surprising splits, check out the gallery of the year's biggest breakups...

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