Karl Stefanovic 'considering writing his own autobiography' after Lisa ...

He has a starring role in Lisa Wilkinson's memoir, It Wasn't Meant to Be Like This.

And Karl Stefanovic is finally ready to tell his side of the story.

The Today host, 47, was blindsided by Wilkinson's decision to include chapters about his family in her tell-all book and is now plotting his revenge, reports Woman's Day.

'Karl is now considering his own tell-all to have the final say. Only then will it be revealed that there really are two sides to every story,' an insider said.

The source claimed Karl was 'very protective' when it comes to his family, despite how carefree he may appear on television.   

'Both he and Jasmine are at a loss as to why the entire publicity rollout for Lisa's book relied so heavily on the decade she shared with Karl on breakfast TV,' they said.

Wilkinson's tome delves into Stefanovic's divorce from his wife-of-21-years Cassandra Thorburn in 2006 and subsequent marriage to Jasmine Yarbrough, who is nine years his junior, in 2018. 

In one chapter, Wilkinson even recalls the moment Stefanovic privately told her he had 'met someone' and was 'madly in love' - just months after separating from his wife.  

'Perhaps if Lisa felt so compelled to showcase Karl and Cass in her memoir she could send them both a big fat royalty cheque for their contribution to the most interesting chapters in the book - it's the least she could do!' the source said.  

It comes after a number of claims in Wilkinson's memoir were questioned by industry insiders, including a chapter dedicated to her exit from Nine and falling out with Karl over a pay dispute.    

Here are all the disputed claims from the memoir, allowing readers to decide for themselves whether it should be categorised under 'fact' or 'fiction'.

Claim 1: Lisa says Karl snubbed her wedding. Fact: The guests didn't know it was a wedding

Wilkinson's claim that Stefanovic intentionally 'snubbed' her vow renewals with husband Peter FitzSimons has been disputed by guests who attended the ceremony.

The Sunday Project host says Stefanovic's no-show at the October 2017 event was the final straw for their troubled relationship - even going so far as to imply he refused the invitation because he knew she was about to get sacked from Nine. 

But this narrative has been disputed by guests who attended the ceremony, many of whom told The Australian they didn't know it was a wedding until they arrived.

If this was the case and Stefanovic hadn't been told ahead of time the event was to celebrate Wilkinson and FitzSimons renewing their vows, then his decision to pull out at the last minute arguably wasn't the snub Wilkinson is making it out to be.

It's unclear if Stefanovic was made aware his co-anchor and her husband of 25 years were planning to renew their vows, or if he was simply told it was a party.

Regardless of what he knew, Wilkinson took Stefanovic's last-minute cancellation to heart, and it effectively marked the end of their personal and professional relationship. 

Claim 2: Karl was paid more than Lisa. Fact: Lisa was actually paid more than him for years

Lisa's book includes a chapter dedicated to her sacking from Channel Nine and falling out with Stefanovic over a pay dispute.

She alleges Stefanovic proposed in August 2015 they join forces to renegotiate their Nine contracts - not unlike how the cast of American sitcom Friends famously worked together to broker better deals with NBC.

But she claims he ended up ditching this idea and instead played rival networks Nine and Seven off against each other in order to secure a better deal for himself.

'Weeks later... the media became awash with stories that Stefanovic was restless at Today and looking for greener pastures – and more civilised working hours – at Channel Seven,' she wrote.

Stefanovic was soon at the centre of a bidding war between Nine and Seven that resulted in him re-signing a five-year deal with Nine worth at least $2million per year.

Wilkinson's deal was worth significantly less, about $780,000 a year, and was only for two years.

'There was no doubt about it: Karl certainly knew the art of the deal,' she wrote, adding that the resulting pay disparity between them 'was so off the charts that no-one would have believed it'. 

However, this allegedly doesn't tell the full story.

News.com.au reported earlier this month that Wilkinson had in fact earned more than Stefanovic for years when they first joined forces on Today, and it was only at the end of their

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