14/08/2014 16:45 BST | Updated 20/05/2015 10:12 BST

Cressida Bonas' 'Kate Middleton Strategy' To Win Prince Harry Back Leaves Him 'Heartbroken'

Prince Harry's ex girlfriend Cressida Bonas is said to be taking a leaf out of the Duchess of Cambridge's royal dating book to win him back.

The young socialite is following what has been coined as the "Kate Middleton strategy", firstly by stepping out looking incredible in a backless jumpsuit last week. Now, Cressida has reportedly been partying with Brit actor and total heart-throb Benedict Cumberbatch.

According to the London rumour mill, Cressie joined the Sherlock star at celebrity hotspot Chiltern Firehouse while out partying with Princess Eugenie in the hope she'd make her prince jealous.

"Cressida has taken a leaf out of Kate's book. She looked absolutely stunning in her outfit last week and there's one man who she will have wanted to see those pictures - Harry," a source told The Mirror.

"They got on really well. Could they find love again, like Kate did? It's possible."

However, another insider said the only reason Cressida is going out so often is just to prove a point.

"Harry thought she was boring towards the end. She didn't like to go out and have fun as often as he does. He didn't want to commit," the source spilled.

The former dancer's tactic is apparently doing the job and Harry is thought to be cut up and is planning a boys' weekend at Glastonbury to take his mind off his ex.

"Harry is heartbroken over his split from Cressida," a source told the Daily Star.

"He's done his best to win her back but so far that hasn't worked. He's now putting his efforts to enjoying his summer as a single man and the World Cup and Glastonbury are at the very top of his list."

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