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Speculation on the pair's relationship status has lingered since sources debunked reports that they separated last June, but People claims that Davy has been named on the Buckingham Palace guest list for Prince William and Kate Middleton's upcoming ceremony.
It is also believed that Davy will accompany Prince Harry to the newlyweds' private reception, where the young Windsor will deliver his Best Man's speech.
James Hewitt, the former lover of Harry's late mother Princess Diana, today claimed that she would be "very proud" of her boys and support their relationships.
Celebrities set to attend the royal wedding include Guy Ritchie, Elton John and the Beckhams.
