Miley Cyrus and Liam Hemsworth have a tumultuous history, and In Touch can exclusively reveal tensions are rising before their wedding.

“Miley was hoping to finally walk down the aisle with Liam in summer of 2017, but things are so bad between them right now that friends fear it might not happen,” says a source.

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The pair infamously called off their first engagement back in 2013 and reconciled at the end of last year — but is history about to repeat itself?

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“She’s telling friends that she still wants a wedding and family with Liam,” the insider explains, adding, "Miley really wants this to work, but fears the end is near.”

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