For those interested, our source had more mundane observations as well. "Ed was carrying a big Brooks Brothers bag, so I think he had probably spent his delay-time in the airport shopping at the Brooks Brothers. Jessica and Ed waited until the very end to board their flight. And then Jessica tried to go get a pizza to take on the plane but they decided they didn't have time."
In true gossip guy form, our spy snapped the blurry cell phone pic here, although, alas, he wasn't able to snag a smooch shot.