I’ve always assumed that she was learning the ropes in the ‘waity’ years. No way would William want her to end up like his mother. Kate has never put a foot wrong (unlike Sophie who people praise!). She was obviously learning how to be the perfect royal behind the scenes.
I think that’s just what kate/will-stans tell themselves to romanticise their relationship. It’s a nicer alternative to the reality that Kate was mostly seen shopping on the Kings road in those years, living in a flat her parents bought for her. In reality, if memory serves, the Queen found it disappointing that Kate didn’t have a proper career, which is what supposedly prompted her stint at jigsaw. Belle Robinson (jigsaw founder) gave a good review of Kate but was open about how she’d asked for a job (3 days a week) that allowed her to be flexible because she was dating a high profile man. This was circa 2006 I believe. And really it’s the very definition of moulding your life to fit around someone else.
belle was also clear that Kate didn’t get any official support; so it’s not like the palace were involved in grooming her for royal life.
in the decade of dating Prince William, you’d assume that Kate would take up endeavours that
would prepare her for such a role; charity work, public speaking. But Kate never did that, she paid lip service to a career at jigsaw but it’s clear her priority lay in making herself available to William.
the reality is that there was no “preparing” for royal life. As far as the royal family are concerned, unless you’re officially engaged, you’re not in the door and they have nothing to do with you.
I think for William, he was never 100% sure on Kate. I can’t speak for the inner workings of his mind, obviously. But it’s telling that he broke up with her. It’s telling that he waited a decade before marrying her. It’s telling that he wasn’t super excited to tell his brother he was about to propose. It’s telling that he got drunk the night before the wedding. IMO, Prince Harry is saying a lot in spare without saying it.
i think their marriage is based on a lot of pragmatism with some affection, rather than deep profound love and intimacy. I just don’t think there’s evidence that Kate was using that decade to “learn the ropes”. I think at best, she stuck it out and it showed William she was the best candidate he was ever likely to find.