I recall the whole thing well. Neither parent behaved well. And no, mistresses didn't just appear or disappear then , there were quite a few v feisty women around. The Tory admin had lots of them, the papers seethed with kiss and tell. There was no more and no less hypocrisy than there is now, IMV.
I thought Flora copped a really bad deal.
I didn't know CP himself but came across him on a few occasions. On one of those, we were both supposed to be queuing to get into a reception. I am short, he was tall. He was important, I wasn't ( and am not). He barged into me into me with such force ( queue jumping) that he knocked me into the gutter. He did not have the grace to help me up, apologise or even stop.
In my view, you can often tell what people are really like by how they behave in little ways to people they don't know and may never see again.