Jessica Simpson: 'I've Cried Myself to Sleep'

Jessica Simpson knows heartbreak.

The singer went through a public divorce with Nick Lachey in 2005, and she recently split from musician John Mayer.

Now she’s telling InStyle magazine, “I believe you fall in love more than once and get your heart broken more than once. Trust me, I have cried myself to sleep."

Jessica, 27, also said, “I’ve had my heart broken since my divorce,” but she doesn’t reveal if she’s referring specifically to Mayer.

Jessica and John, 30, split in May after nine months together.