So this is why Prince William waited so long to propose to Kate

Is anyone else feeling nostalgic?

The world has got completely swept up in Prince Harry and Meghan Markle's whirlwind romance, from their early engagement and rapid wedding to their royal baby, arriving any day now.

But we have been so invested in the Duke and Duchess of Sussex's speedy romance, that we have almost forgotten how slow and steady the Duke and Duchess of Cambridge's romance was.

Yes, they may be one of the most iconic couples now, welcoming their third baby just last year, but they took their sweet time to tie the knot, with Prince William infamously waiting nine years to pop the question.

Why? Apparently the royal was reluctant to propose until he was 100% ready, following his parents’ highly pressurised marriage.

According to royal expert Katie Nicholl’s 2011 book, The Making of a Royal Romance, the prince ‘had witnessed his parents’ marriage crumble under pressure’, and he wanted to make sure his marriage didn’t ‘endure a similar fate’. ‘He was reluctant to bow to similar pressure and vowed not to be hurried to the alter,’ Nicholl explained.

‘Look, I'm only twenty-two for God's sake,’ Wills told the press in 2005. ‘I’m too young to marry at my age. I don't want to get married until I am at least 28 or maybe 30.’

This week Princess Diana’s astrologer, Debbie Frank, also weighed in on the topic, explaining to Yahoo! UK’s The Royal Box, that he needed to wait and see how Kate dealt with royal pressures.

‘Kate and William are opposites and they say opposites attract. I think William needs his own rock, his own steadying force, I think that's what Kate really is for him,’ she explained. ‘He's very sensitive and I think he actively didn't want to marry somebody who was going to dissolve into a heap, and Kate's strength is a source of sustenance to him.’

Luckily, the couple got engaged in 2010, married in 2011 and now we have the Cambridges.