Younger people who carry out proper research on the family will know about the affair because it is part of history. Everyone needs to learn how to read media reports carefully in order to get the correct story.
Camilla becomes Queen Consort the moment Charles becomes king--that is the protocol. Camilla, when the engagement was first announced, sought to mollify the rabid Diana contingent by letting them know that she, Camilla, knew that she could never take Diana's place and her choice of titles represented that. But, in the UK, there is no such title as "Princess Consort" for the wife of the king and experts were quick to point this out.