Isn't it amazing that if Petraeus was going to roll the dice that he didn't find a better looking gal than Broadwell?
Most of the pictures of her are pretty homely. See for example at http://www.nydailynews.com/news/national/petraeus-mistress-bombarded-whistleblower-emails-article-1.1201051
Of course I believe what it happens is she went after him hard. She wouldn't have been too tempting to me.