Petraeus and Benghazi; what is going on here?

Sex, Lies and Videotape; Petraeus’ Benghazi Problem  "That West wrote that article November 6th, makes the Petraeus “resignation” on November 9th highly suspect. Pundits are out in force questioning the “affair” with high ranking retired Military stating “its not a must for him to resign over an affair”. That the FBI was conducting “some investigation” in which they learned of the Petraeus affair is interesting, as the FBI is the agency investing Benghazi too. What even causes one to pause is what West uncovers about Petraeus and the funerals for the 2 CIA operatives:

Mr. Petraeus didn’t attend funerals held later for the two CIA contractors, irking some administration officials and CIA veterans.

Is Petraeus Falling on His Sword?  "But it certainly it is a bit odd that Petraeus's resignation happened several days after the election and several days before he would have testified about Benghazi. It would not be the first time self-immolation was ordered so that a dear leader could survive.
"Remember, Petraeus refused to go along with the administration's storyline about Benghazi, disassociating himself and the CIA from the whole debacle. It could be he was ordered to resign. Failure to do so might have meant his affair would be plastered over the media and the mistress targeted. So maybe Petraeus chose to fall on his sword, coming forth with the information about his affair himself and offering his resignation."
....
"After all, the story of a "spontaneous" demonstration instigated by an obscure video has not held up well, and in-depth answers still have not been forthcoming. But as head of the CIA, the general has to know the truth about what happened, and is no doubt being pressured to sit on it."

Victor Davis Hanson; Down from Olympus "Fairly or not, questions will be raised why this Washington-style Friday-afternoon resignation occurred after rather than before the election — a question that does not necessarily suggest that Petraeus’s did not take the proper nonpartisan course. But just days after this Tuesday, we are already beginning to hear of all sorts of “sudden” news: the Iranian attack on a U.S. drone; the plight of the Hurricane Sandy victims ... the sudden publicity of the “fiscal cliff”; and the Benghazi hearings. In that unfortunate politicized landscape comes the Petraeus bombshell."

Hanson included this little quote that I particularly enjoyed:

Because of both Petraeus’s sterling reputation and his high office, infidelity takes on greater importance than if it were — how absurd to write this — merely that of a lesser figure like Bill Clinton, whose serial miscreant conduct was taken for granted, even when he was a sitting president.