They are friends - he was on the ITV documentary about her earlier this year:To be fair to Camilla, they were both invited to the same lunch. I don't know if they're friends outside of that or not? It looks bad for her alright with Jeremy's revolting article coming out the same day.
I have no doubt that the RF cooperate with the media and that they have a preference for certain journalists. They need to have a good relationship with the media in their position. Harry and Meghan do the same. Omid Scoobie, Bryony Gordon, Oprah and Gayle King being a few examples of journalists/presenters that they have befriended. That was hardly a big revelation from Harry. Anybody with a media presence would need to try and maintain good relations surely. It's what they do in order to maintain that relationship that's more important.
Camilla enjoyed 'crafty fags’ with Jeremy Clarkson and 'loves risqué jokes'
The future Queen Consort's passion for telling "risqué and naughty" jokes has been revealed in a new ITV documentary chronicling her time guest editing Country Life magazine
www.mirror.co.uk