According to insiders, Jackie and Beau have known each other for years but their friendship grew even closer as Jackie’s 15-year marriage began to fall apart.
“Beau makes Jac laugh like no-one else,” reveals the source.
“They have the same sense of humour and he has been a breath of fresh air for her during this difficult time in her life.”
In fact, the pair have spent a lot of time together this year with Beau, 33, often stepping in to cover for Kyle Sandilands on KIIS FM’s high-rated Kyle & Jackie O show when needed.
“Loved having you fill in for Kyle,” Jackie captioned a snap of the duo on Instagram in September, to which Beau commented: “Love you @jackieo_official and Kyle too.”
And the duo’s on-air chemistry hasn’t gone unnoticed by listeners.
“What a great couple,” one fan proclaimed on Instagram.
Meanwhile, another said: “Great duo.”
Last week, Jackie took to the airwaves to reveal she had split from Lee and had moved out of the family home.
“We’ve been separated for quite some time,” the 43-year-old shared, adding the couple’s main priority is their 7-year-old daughter Kitty.
“Our focus for this next chapter is, of course, our wonderful daughter and continuing to provide her love and happiness, together.”
A spokesperson for Jackie O told New Idea, "Their relationship is strictly professional and any speculation otherwise is completely fabricated and categorically untrue.”
Read the full story in this week's issue of New Idea, on sale now.