"Remember that you're marrying a beautiful man you are in love with and remember to make time for him," she told Popeater, "because I didn't. Andrew and I spent 40 days together for the first five years of our marriage. I didn't know that would be the case, but figured it out two weeks after I was married."
Speculation that Prince William and Middleton will wed reached a fever pitch earlier this month after Tina Brown reported on the Daily Beast that the dates June 3 and 4 on the Buckingham Palace calendar were "mysteriously blocked out" for the possible announcement of their engagement, with nuptials to follow in November.
For more on Prince William and Kate Middleton's marriage plans, including when he'll pop the question and how she won his heart, check the newest issue of PEOPLE on stands this Friday