"Is there a lower human being?" Oliver Curtis savages Roxy Jacenko's ex after their affair.

More than six months after being released from prison, Oliver Curtis has torn apart the man who had a relationship with his wife while he was behind bars.

In April last year, The Daily Mail published photos of PR maven Roxy Jacenko kissing her ex-boyfriend Nabil Gazal at a party. At the time, Jacenko’s husband was in jail on charges relating to insider trading and she had just been diagnosed with breast cancer.

Now, in an interview with Kyle and Jackie O on Wednesday morning, Curtis has pulled no punches in his critique of Gazal.

“It’s absolutely disgusting. What sort of man does that?” he said.

A post shared by Roxy Jacenko (@roxyjacenko) on Jan 20, 2018 at 8:55pm PST

“Moving in on another man’s wife while somebody’s in jail. Is there a lower human being?”

Curtis went on to accuse Gazal of playing the “friend card” while Jacenko battled her cancer diagnosis and her husband’s jail sentence.

“This is the guy that was playing the friend card, and ‘I’m here for you, you’ve got cancer blah blah blah’, and then all of a sudden he bloody moves in! Come on.

“Let me tell you I wouldn’t want to run into him on the street. Or he wouldn’t want to run into me.”

The father-of-two went on to admit he only found out about the affair while he was behind bars.

“It was a situation where I had a lot of time to deal with it, because you’re on your own. And because I was specifically on my own in there, there’s nothing other than pacing around a yard.”

Listen: Roxy Jacenko talks to Mia Freedman all about her husband’s jail sentence and her breast cancer diagnosis. Post continues after audio.

In August, Jacenko told News Corp the affair came about because she “didn’t think there was any hope” for their five-year-marriage.

“My marriage in my eyes had come to an end … it had been a seriously tough 12 months,” she said. “We were drunk and stupid and mucking around.”

“I’d spoken to a lawyer about divorce, and [Curtis] knew that,” she added. “I told him I wasn’t sure what was going to happen in the future … it was without question the worst 12 months of my life.”