Kevin Hunter’s alleged affair isn’t his first: He cheated on Wendy Williams after she gave birth to their son

Wendy Williams is cutting ties with her estranged husband Kevin Hunter, both personally and professionally.

A source who has spent time with Williams since their breakup tells PEOPLE that the daytime TV host, 54, will be firing Hunter as her manager in the wake of her divorce filing — which an insider told PEOPLE came after he admitted to cheating on her and fathering a child in an extramarital relationship.

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“She’s not taking him back. He’s being fired as her manager and she lawyered up big time,” the source says of Hunter, who has had an executive producer title for The Wendy Williams Show since it debuted in 2008.

Williams, who shares 19-year-old son Kevin Jr. with Hunter, filed for divorce last week after nearly 22 years of marriage. (The pair also shares a production company, Wendy Williams Productions.)

“It’s hard after being married for so long and having a family together, to be able to move forward,” the source says. “But she realized she had to open her eyes to a bad marriage. So many stick around when they should get out.”

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The source also claims that Hunter’s alleged affair has been going on for the majority of his marriage to Williams.

“Wendy is telling people she had no idea he had been having an affair, but when she found out the details, it turned out he had been seeing the woman he had a baby with for 15-16 years,” the source claims. “That made her realize it was time to move forward with her life. Seek treatment and move on. She’s not taking him back.”

A rep for Williams and Hunter did not respond to PEOPLE’s request for comment.

On Tuesday, Hunter opened up about Williams’ divorce filing in a statement obtained by PEOPLE.

“I am not proud of my recent actions and take full accountability and apologize to my wife, my family and her amazing fans,” he said. “I am going through a time of self-reflection and am trying to right some wrongs.”

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Hunter also vowed to always stand by Williams and their family.

“28 years ago I met an amazing woman: Wendy Williams. At the time, I didn’t realize that she would not only become my wife, but would also change the face of entertainment and the world. I have dedicated most of our lives to the business empire that is Wendy Williams Hunter, a person that I truly love and respect unconditionally,” he said. “No matter what the outcome is or what the future holds, we are still The Hunter Family and I will continue to work with and fully support my wife in this business and through any and all obstacles she may face living her new life of sobriety, while I also work on mine.”

News of Williams and Hunter’s business separation comes after a difficult time for the TV personality, who recently revealed that she was living in a sober house. (She has long been open about her past addiction to cocaine.)

And Hunter’s alleged affair isn’t his first: He cheated on Williams after she gave birth to their son, a painful period she described in her memoir Wendy’s Got the Heat.

“It has made our marriage — and I know this is cliché, but it’s true — it’s made our marriage stronger,” she told VladTV in 2013.