Heart-break, ahoy!

Rex Features

Aiden Turner, who plays the skinny-dipping Poldark in the BBC's latest period drama, is secretly engaged to girlfriend Sarah Greene.

The actor, 31, reportedly popped the question to his West End actress girlfriend, 29, after spending Christmas with her parents.

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An insider told the Sunday Express, "They are a really close and happy couple, and marriage is the logical next step for them. Sarah is perfect for him, she's very protective. Both of them don't really go for the glitzy side of showbusiness; they're happier spending quiet evenings playing Scrabble."

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Sarah and Aiden are reluctant to be cast as a celebrity couple; "The minute you open yourself to that, the more they want from you. I have a private life and I want that to be private," she commented.

Aidan echoed the point; "I don't want people to know much about me." The reason? "It allows me to do more with the characters if they aren't in tune with what Aidan Turner is all about." Alas! It seems the details of the big day will remain a mystery to Poldark fans...

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Depite their secrecy, Turner has revealed that work has often kept them apart during their three-year relationship, but added: "It's all we've ever known and it makes for good times when we meet up again."

How adorable is that? Congratulations Aiden and Sarah!