Gettyimages | Kevin Mazur

Jessica Simpson is opening up about her relationship with John Mayer and the singer just revealed she had a very tough time walking away from him...even getting back together with him NINE different times!

Simpson sat down with the 'Today Show' to promote her new memoir, 'Open Book' and discussed a number of topics including her relationship with John Mayer and Tony Romo.

“We were great at intimacy. We were great at loving each other,” she said in the interview with Hoda Kotb. She continued, "That was easy, but the relationship was very complex. And it was always on-again, off-again. On-again, off-again. And I went back close to nine times.”