Boyzone star Ronan Keating promised to marry his mistress during their passionate affair.
The singer, who is divorcing his wife Yvonne, told dancer Francine Cornell they would be wed "in 20 years" and sobbed as he confessed his undying love after their affair began over a packet of Monster Munch crisps.
Cornell tells The Sun newspaper how Keating blubbed: "I need you. I can't not have you in my life."
Francine Cornell, right, has spoken out about her affair with Keating
The affair led to the end of the singer's 14-year relationship with his wife, who is the mother of his three children.
Cornell met Keating in 2009 when she was hired as a dancer for Boyzone's tour of U.K. and Ireland.
She tells the paper: "Ronan was lovely. After a while I noticed he'd look at me and I thought, 'Am I doing something wrong?' I was secretly panicking.
Keating is divorcing from his wife Yvonne
"One day near the end of the tour he came up to me at a soundcheck and said, 'I'm really sorry I keep staring at you, I can't help it.'"
She said they kissed on the tour but it was not until they shared a savoury snack together that she realised they were at the start of a serious relationship.
Cornell added: "Not a lot happened on the tour, though we kissed. One night we sat up talking, eating a packet of Monster Munch together.
"We were chatting and I realised the relationship I was in wasn't right, because I was feeling something for somebody that was more than I was feeling for the person I was in a relationship with."
The pair saw each other in London after bandmate Stephen Gately gave Keating her number and they began meeting in hotels.
She told Keating he had to go back to his wife and family but he said: "In 20 years, we will be married."
Cornell added: "It was nice and I think it was what he believed at the time."
When the singer's wife found out about the affair, she called the dancer and asked if they were in love.
Cornell said: "The only thing I could do was face up to it and be honest. I told her, 'Yes, I am in love with him and he tells me he loves me'."
Yvonne told Cornell she wanted to save the marriage if Francine agreed to "back off."
But she adds: "The marriage was already in trouble before either Ronan or his wife knew who I was."
Last week Keating talked about his infidelity on Piers Morgan's chat show and said it had "devastating effects" on people's lives.
Keating is now seeing 30-year-old television producer Storm Uechtritz