'It was decades ago': Jerry O'Connell responds to ex Giuliana Rancic's claims that he cheated on her with Geri Halliwell 

Jerry O’Connell has responded to claims by ex-girlfriend Giuliana Rancic that he cheated on her with Geri Halliwell.

The Fashion Police star, 40, alleges she was ‘two-timed for one of the lesser Spices’ by the actor in her new tell-all book, Going Off Script.

So when Jerry appeared on Watch What Happens Live on Wednesday, a caller wanted to know what he made of Giuliana’s memoir.

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Taking the high road: Jerry O'Connell refused to speak ill of former girlfriend Giuliana Rancic on Wednesday when asked about her claims that he cheated on her. He is pictured here on Monday

‘I didn’t think that much of it,’ the 41-year-old admitted, not confirming or denying the claims, but refusing to speak ill of his former girlfriend. ‘She's a very nice girl. I don't want to say anything negative.’

He went on: ‘She's a very nice girl. We had a very fun time. It was decades ago. I don't believe cell phones were used then. It was like horse and buggy... It was a while ago.’

Jerry didn’t flinch when host Andy Cohen posed the question to him, instead giving some background to anyone unfamiliar with his former flame.

Former flame: The Fashion Police star alleges the actor had an affair with Geri Halliwell, but she took him back before he left her for now-wife Rebecca Romijn. The pair are pictured in January 2004

Former flame: The Fashion Police star alleges the actor had an affair with Geri Halliwell, but she took him back before he left her for now-wife Rebecca Romijn. The pair are pictured in January 2004

Happy to talk about it: Jerry didn't flinch when asked about his ex on Watch What Happens Live

Happy to talk about it: Jerry didn't flinch when asked about his ex on Watch What Happens Live

‘For those of you who don't know, Giuliana Rancic is a personality on another network,’ he said. ‘And we dated, then we didn't date.’

Giuliana, who was in a relationship with Jerry from 2003 until 2004, reflected on the moment the Sliders star told her about his alleged affair – and she was not impressed with his apology.

'"Yeah, I know. I’m so sorry. I don't know what happened." He had as much emotion as the customer-service representative who tells you your bags missed the flight,' the host wrote in an excerpt obtained by Page Six.

Goofing around: The 41-year-old and host Andy Cohen sported blonde wigs, while fellow guest Lori Loughlin didn't need one

Goofing around: The 41-year-old and host Andy Cohen sported blonde wigs, while fellow guest Lori Loughlin didn't need one

Telling all: Giuliana writes about Jerry in her new memoir Going Off Script, which she was promoting last week in Los Angeles (pictured)

Telling all: Giuliana writes about Jerry in her new memoir Going Off Script, which she was promoting last week in Los Angeles (pictured)

While Giuliana gave Jerry another shot after his rumoured fling with Ginger Spice, their romance ended abruptly when he met Rebecca Romijn, who he has been married to since 2007.

The reality star recalls attending Maxim’s 100 Hottest Women Party in 2004 with the actor, where he first encountered his future wife. 'Little did I know he was in the VIP area, talking up Rebecca. As a prelude to feeling up Rebecca,' she wrote.

Giuliana claims Jerry was unreachable after he met the X-Men star, so she went to his house and was unceremoniously dumped.

Dismissive: Jerry did not confirm or deny cheating on Giuliana with Geri (seen centre with the Spice Girls in 1996), instead simply saying that it 'was decades ago'

Dismissive: Jerry did not confirm or deny cheating on Giuliana with Geri (seen centre with the Spice Girls in 1996), instead simply saying that it 'was decades ago'

'One of the lesser Spices': Giuliana didn't have anything nice to say about Ginger Spice, seen in March 2003

'One of the lesser Spices': Giuliana didn't have anything nice to say about Ginger Spice, seen in March 2003

'Nope. Sorry, homegirl...Things change, but you take care, OK?' she penned, recalling the moment their relationship ended.

Giuliana married Bill Rancic in 2007, and they are parents to two-year-old son Edward Duke.

Rebecca and Jerry, who tied the knot just seven weeks before Giuliana and Bill, have six-year-old twin daughters Dolly and Charlie. 

Moving on: The E! star was unceremoniously dumped by Jerry after he met Rebecca, who he is pictured with on Monday

Moving on: The E! star was unceremoniously dumped by Jerry after he met Rebecca, who he is pictured with on Monday

Happy couple: Just seven weeks after Jerry and Rebecca wed in 2007, Giuliana married Bill Rancic. The pair are seen here in November

Happy couple: Just seven weeks after Jerry and Rebecca wed in 2007, Giuliana married Bill Rancic. The pair are seen here in November

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