IMO from what I’ve read they covered up Harry’s horrible behavior for years and rehabbed his image. Along with how bad she reportedly treated staff, I also wonder if there’s things in Megains past.
We have heard it all in the press. None of that was a "secret".
He was always seen as a "rebel".
I think it's partially due to what happened to his mother and how the Royal Family treated her.
So it makes sense on why he decided to marry someone like Meghan Markle.
I don't blame him.