I think it's a complex thing. There was a moment, right after their wedding, when H&M were the media's darling. Closing a car door was "ohmygawwwwd! She's amaaaaaazing!!", for example. And this was after months of "the new royal superstars", "Hollywood stardust!", "breath of fresh air" etc etc. Around the time Meghan wore a black trouser suit to the opening of something, William and Kate were nowhere to be seen (media-wise), and they looked frumpy and dowdy and boring and uninspiring next to the rockstar couple with the Victoria-Beckham-turquoise-dress-under-the-umbrella-backlit-shot new couple. They must have been totally high on all the adulation and attention.
Meanwhile, we now know that Meghan had kept Sunshine Sachs on the back burner, was negotiating a deal with Oprah and Netflix. They will have commanded big $$$$ for the latter precisely because of that extreme media attention. It was like the Diana/Martin Bashir interview all over again. The media attention fueled Netflix's and Oprah's eagerness to grab them while they were hot. And there was spotify and the book deal - all these things that I reckon made Sunshine Sachs the net winners in all this.
In it all, Meghan and Harry didn't actually do anything at all, except get married. They just existed. The media, the public, the royal family - they all created the excess hot air.
And I think Meghan and Harry have been chasing that high ever since. They undid it all by their own actions, sure, but when you've once been feted "the world's most beautiful woman" at a time when all you're doing is cutting ribbons and reading out speeches other people have written for you (after a career of serious hustling and grifting, which can't have been easy), is it any wonder that they still think they're amazing just for existing?
What they lack now, is the stalwart RF machine telling them at every turn that all this will blow over. That centuries of history has demonstrated that nothing lasts forever.
There were so many indicators for me of things going wrong, and there continue to be more and more of them, pointing to a dysfunctional relationship and very, very shaky foundations. I'll never forget Meghan turning up at the service in remembrance of Stephen Lawrence, late, in a sleeveless dress, disheveled hair (I think she thought it was California chic), smiling. I think she saw Doreen Lawrence, listened to the brief about who Stephen Lawrence was etc, and made assumptions. Meghan is a woman of no substance. Her radar is totally off. Harry, I think, does have a radar after a lifetime in the RF but it regularly goes haywire and/or he succumbs to competing personal needs.