Diana was cheated on from the beginning.
What I have found is there is a lot of divorced older women who were also cheated on who really identified with Diana. It's why when some people trash Diana, and they do, these women feel like they are being trashed.
Then there are people like me who see what Diana did to change the stigma around aids. Again if you weren't an adult then I don't think you can understand what it was like then. Russell Davies drama shows it best though with even nurses refusing to treat aids patients and treating them badly. They were treated by many like the lowest of the low.
Diana by giving that man with aids a hug literally changed how many people saw aids over night. The nans face wasn't even shown as he was too afraid. People with aids were still forced out of their homes at that point by harassing neighbours and often totally ostracised by family and friends. So people tried to hide the fact they had aids as long as possible,
So for me you can trash Diana all you want. But her work around aids means I will always admire her for the massive impact she had. No other member of the royal family has ever come close to this. And it's because she wasn't afraid to take on a very unpopular and controversial cause.
That is something else detractors don't get. Diana was not safe and bland. She was messy and did things no one would agree with such as affairs with married men. But she had an incredible charisma that drew people in. People don't think she is a saint or martyr as detractors often accuse. They simply don't understand why people admire her.
I have met one non famous person in real life with incredible charisma. People like that almost shine and even when they say nothing, still seem to be the centre of attention. It's a certain energy and it's hard to describe.