Agreed they were nosing in on his affairs, and that there was a catfight, of sorts. But I'm not sure the catfight was over Petraeus. I think I read that Broadwell was trying to scare Kelley away from Allen.
Fairly small group of people involved there, but don't assume Petraeus is at the center of it. He might be, but at this point the evidence is ambiguous.
I don't foresee any interesting fallout resulting from his testimony.
It looks unwise of him to have gotten himself involved with females inclined to cat fight, even if the nominal reason for the cat fight wasn’t even the General himself. I know Rush Limbaugh asked, given today’s mores, why the huge hypocrisy by the left over this, but even hypocrisy is vice’s tribute to virtue. The General was unwise to think with the wrong head even if he did much good in the past. It’s a bit like a King David story.