Journalist Tom Bradby, who interviewed the couple after they announced their engagement yesterday, basically said they'll never get a divorce.
Tom said: "I think there are a lot of things that are very clear to me about William and Kate - they'll never get divorced. I'll eat my hat if they ever get divorced. I think they'd rather be miserable than get divorced; they understand their position in life is to stay together no matter what."
Unlike Prince Charles and Princess Diana, Prince William and Kate actually fell in love and spent eight years together before getting engaged. Princess Diana was only 20 when she married Prince Charles and their problems started before they even walked down the aisle.
Eight years is no joke, most marriages don't even last that long so if they've been together this long, I have a feeling they're going to grow old together. Good news is if they get sick of each other they can just hang out in different parts of the castle.