He's not exaggerating as puppy already said, he is reporting what one of his clients TOLD HIM.

And I THINK the point he is making is that comparing infidelity to rape (the dispute as to which is more painful is moot) gets audience attention as to the level of pain that goes through someone who experiences either...

He further goes on to mention that while rape is a serious crime, there are NO LAWS against infidelity at all...

Again when a quote is put into context again it makes a LOT MORE SENSE...

Yes, thorough research is VERY IMPORTANT as some people fly off the handle or make snap judgements about people when research isn't thorough enough.