Jessica Simpsoncould have done without one particular comment from her ex-husbandNick Lacheyconcerning her father.

Speaking withAndy Cohenon his SiriusXM showRadio Andyon Wednesday, the singer, 39, shared her reaction to a past remark that Lachey, 46, made on a years-old episode of Cohen’s talk show,Watch What Happens Live withAndy Cohen.

In the old clip, Lachey said the best thing about not having Joe Simpson as a father-in-law after the couple’ssplit in 2005was that he no longer had to “play grab-ass under the table on Easter Sunday.”

Among the variousbombshell revelationsSimpson uncovers in her new memoirOpen Book— which Lachey said he hasn’t read yet — is her complicated and close relationship with her dad, who was also her manager.

As she writes, on her wedding day in 2002, her father asked if she was certain she wanted to go through with it, just before he walked her down the aisle. “Dad, I’m walking down this aisle and getting married,” Simpson writes, describing how she spoke the words “through gritted teeth.”

Simpson and her dad also went through a rocky patch after her parents divorced (which Joe told his daughter about just before she gave birth to her first child) but have since reconciled and the two remain very close.

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Kevin Mazur/Getty; Charles Sykes/Bravo/NBCU Photo Bank via Getty

Jessica Simpson Nick Lachey

The star, who is now married to former football star Eric Johnson, opened up to PEOPLE about her marriage to Lachey, saying that looking back, she respects him “very much.”

“We were young and pioneering our way through reality television, always mic’d and always on,” she said. “We worked and we were great at it, but when it came time to being alone, we weren’t great at it anymore.”

source: people.com