Prince William 's rumored affair with old acquaintance Rose Hanbury has recently made headlines again after his brother Prince Harry suggested that the Buckingham Palace hushed up William's. Prince William’s Affair With Rose Hanbury Speculation Trends On Twitter As ‘#PrinceOfPegging’ Goes Viral. Rumours over Prince William being unfaithful to Kate Middleton began to trend on Twitter following a claim by Instagram account DeuxMoi.