Dirty Dog! RFK Jr.'s Friends Reveal Why Cheryl Hines Was 'Crazy' To Marry Him -- Cheater For Life!

Cheryl Hines and Robert F. Kennedy, Jr. had a picture perfect wedding back in August 2014 when they exchanged vows at the famed Kennedy Compound, but friends of RFK, Jr. say that Hines was absolutely bonkers for marrying a womanizer like him, Page Six reports.

“Any woman who gets involved with Bobby does so with her eyes open, or their brains lopped off,” a friend of Kennedy's said in a new book by Jerry Oppenheimer, RFK Jr.: Robert F. Kennedy Jr. and the Dark Side of the Dream. “Any woman who thinks they’re going to change Bobby is misguided and purposefully ignorant. Women have to understand what they’re getting into when they’re with him.”

Indeed, Kennedy had a documented history of cheating on his previous wives, Emily Black and Mary Richardson. “You can hate it, you can make excuses for it, you can do whatever you want to do," the friend continued. "It doesn’t change the fact that he has a long history of doing certain things. And if you think, ‘Wow, I’ll be different,’ then you’re bleep.”

But perhaps Hines wasn't bleep. Back in 2014, RadarOnline.com exclusively revealed just weeks before the wedding that Kennedy had been cheating on Hines with a socialite that he had met at the gym -- stringing the woman along and giving her the impression that she may be his future wife. However, despite the news, Hines went through with the wedding with a smile on her face. In fact, Hines' Curb Your Enthusiasm co-star Larry David reportedly told Kennedy, “Nothing you do will ever rattle her.”

Further evidence suggesting that Kennedy's behavior would not shock Hines -- both Hines and Kennedy were married when sparks began to fly between them. “It was a shocker because Mary claimed she had introduced Hines to Bobby at a charity event, ­although Bobby and Hines asserted that . . . Larry David had brought about the introduction,” Oppenheimer's book says. “Still, Mary felt ‘very betrayed’ by what she termed the ‘Sisterhood’ . . . women sticking ­together, women supporting one another.”