Petraeus, right, chatting with Robert Gates, the honoree at the Oct. 27 OSS Society dinner. Not shown: fellow guest Paula Broadwell, who arrived separately. (Rebecca D'Angelo for The Washington Post)

We’re told that the two — who sources have told the Post broke up months earlier — arrived separately and did not sit together, though they chatted at a VIP reception. NBC obtained a photo of her there in a dazzling multi-colored floor-length gown. The speech-heavy dinner was a fun but long night: Broadwell noted to a friend she didn’t get home until 2:30 a.m. So, there’s that. During WWII, the OSS’s well-bred agents earned it the nickname “Oh So Social” — what about “Oh So Sexy”? Sorry, couldn’t resist.

Related: Paula Broadwell’s drive and resilience hit obstacles

As Paula Broadwell holes up in D.C. house, camped-out media wait in patience

Earlier: What happens to the Other Woman? Donna Rice Hughes reflects on the Petraeus-Broadwell scandal, 11/12/12

David Petraeus and other political sex scandals: What does it take to kill a career?, 11/9/12

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