Prince Harry’s relationship with girlfriend Chelsy Davy is still on the rocks, after the heiress reportedly found an array of steamy text messages on his phone which were reportedly from another woman.

A source told British newspaper The Sun that their break-up “started when Chelsy overheard Harry having a whispered conversation with a girl.'

The insider continued: "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.''

The Prince has been trying everything in his power to win back the heart of his girlfriend, asking her to accompany him on holiday in December to Dubai, but Chelsy has denied his advances, preferring to spend her time studying for her exam at Leeds University.

A source tells the Daily Mirror: “She’s studying a South African constitution law and human rights so that she can have a stonking law career. And she won’t let Harry jeopardise that.”