Andrew has had his share of scandals in his life already. Back when Charles and Diana got married, he fit the playboy role of the second son who doesn't have to be king, very much like Prince Harry is now. At one point, he was even rumored to be dating a porn star. There had been rumors and speculation for a long time before he got married that Prince Edward, the queen's youngest son, was gay. He worked in and was very active in theater, so I think that stereotypes led to a lot of those rumors.