Cher has peeled back yet another intriguing layer of her iconic life, revealing the one and only celebrity she dated who broke up with her.

The 78-year-old diva was promoting her new book Cher: The Memoir on The Howard Stern Show on Thursday.

The longtime shock jock asked if guys 'expect fabulous sex because you're Cher,' and she quickly answered, 'Yes, and they get it.

When asked how she could tell, she said, 'You could tell by the reaction,' which prompted Stern to ask, 'Who would ever leave you?'

The singer/actress and the actor dated for two years between 1982 and 1984, with their 13-year age gap raising many eyebrows in Hollywood at that time.

When asked why he left, Cher said, 'Because sometimes you're only meant to stay with someone so long,' adding, 'he was really young.'

Cher revealed back in 2018 that, 'When we kissed, I thought my head would shoot right off my body.'

Then in 2021, she opened up in more detail about the relationship, revealing where they met.

'I met him at a birthday party my friend was having for me. She said, "I invited this guy and I think either you or my friend who's an editor will like him,"' Cher explained.

'We became friends because we laughed at the same things constantly. He would sleep over and it was just a friendship [at first.] That took a long time. Well, I guess not really a long time,' she said.

She also admitted that their 13-year age gap, 'was a bigger deal back then,' with Kilmer making his big-screen debut in Top Secret in 1984, the year they broke up.

He followed that up with 1985's Real Genius and 1986's Top Gun and his career was fully launched.

Cher added that she watched his 2021 documentary Val, and wrote to him after she watched it.

'I said, "Valus Maximus, I'm sorry if I did anything to piss you off or hurt your feelings. I love you and your documentary was all things... I love the things that pissed me off, the things that made me hysterical, amazed, hurt, astonished, etc. You are brave and beyond brilliant. Ethel,' she said, referring to their nicknames for one another.

She added of the documentary, 'He's a true artist and Renaissance man. He was sick and it didn't stop him. He created an extension of his art and his life.'

'Look what he created and even the things he let you see that nobody would let you see. Even the worst things, he wanted to be in the documentary because he wanted to show you who he was,' she said.