Wendy Williams' divorce petition was the result of what?

Williams revealed in her 2004 autobiography, "Wendy's Got the Heat,

 she found out Hunter was having an affair in 2001. 

 Williams noted that since their son was still a baby, 

 The book includes an honest back-and-forth between the pair from Hunter's point of view as well.

Williams also flashed the sparkler in 2017 while urging viewers not to "believe the hype" 

 around her husband's suspected extramarital affair in the midst of the Daily Mail's

were wed in 1999, the divorce petition claims,

adding that their union "broke down" six months ago.