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Prince Harry's girlfriend Chelsy Davy dumped him after she discovered secret text messages from another woman on his mobile phone.
The Zimbabwean-born university student read the messages after overhearing Harry whispering on his phone last month.
Unnamed friends of the couple told The Sun newspaper Chelsy "hit the roof" when she found the text messages, which were apparently from a secret admirer.
"It started when Chelsy overheard Harry having a whispered conversation with a girl," one told the newspaper.
"Later she stole a look at his mobile while he wasn't looking and found the text messages that really upset her.
"Chelsy was furious. She then confronted Harry and they had a blazing row."
Ms Davy is believed to have discovered the secret text messages after Harry returned from watching England's Rugby World Cup semi-final match against France in Paris on October 13.
The latest rift between the couple comes amid reports Davy is preparing to pack her bags and leave Britain, despite starting a law degree just two months ago in Leeds.
Ms Davy, 22, is said to be sick of the cold weather there and unhappy with Harry's playboy lifestyle.
She was pictured today in the tabloid newspapers looking tired and drawn as she left her flat in Leeds to visit a nearby coffee shop with a friend.
Ms Davy is believed to have asked Harry for a "cooling off" period.
"Chelsy put her foot down," a friend told the newspaper.
"She said men who are truly in love with their girlfriends don't conduct close friendships with other women to that degree."
- AAP