To think these people wanted Bill Clinton's head on a platter because of a blowjob.
I don't get what Bill Clinton has to do with this. I would agree with you though if Bill Clinton wasn't married to Hillary in 1998 who would care about a blowjob that he was getting at the White House but he is/was married to Hillary.
Who knows, Hillary may just be more discreet than her husband.
Also, being married doesn't necessitate monogamy. I'm in an open relationship with my significant other and we plan on getting married.