As my brother-inlaw put it,

if the Prince of Wales didn't take a mistress it would break a tradition going back to a time since "Llewellyn the last".

and even he had "a soul" mate,,,,,,,

as a couple of divorcees getting married whats the problem? As support to a future king whats the problem? and in the days of PC & equally gone mad the concept of treating a King's spouse like we did Queens Vic and Liz's spouses is hardly contentious. As for the creeping notion of Queen Camilla - NO THANKS
What the world holds for Camilla is acceptance. We loved Diana. And rationale has no place in such affection. Only feelings.

Monarchy is infinitely cheaper than a president and in the event of politicians getting too far above themselves, public opinion AND the law would enable a monarch to slap them down. Just the possibility is enough to restrain most of them.

SO tell me again - do presidents always remain faithful to their spouses? Name me a country & I will shame a president..........