Crown Princes/Kings have always married for duty, and remained free to continue their liaisons - their wives were expected to turn a blind eye and if they wanted to do their own thing, must be discreet. Charles from age about 18 knew that he had to marry a girl of good family with no past indiscretions and Diana wanted to play Cinderella. She was not whiter than white - a manipulative girl. The big problem here is that Charles & Camilla are devoted to one another and she would actually make a much better Queen than Diana, but neither they nor Diana were discreet.Let them call themselves what they like - Charles won't inherit till long after most people are comfortably retired and who wants to live in that particular goldfish bowl, being told what to do by the Palace flunkeys, always being criticised?