Whether his reasoning was correct or not, Pete was right in that the wedding has indeed happened, and at the reception, Betty and Jennifer Crane (Harry's probably off crying some more about lost ad revenue) exchange stories about the preceding day across their sparsely-populated table before, in the front of the room, Roger grabs a microphone and genially asks everyone to please move up and sit wherever they feel like, and it's just too bad they didn't show anyone taking the opportunity to get out of a boring conversation, because you know that must have happened in at least one instance. Roger adds that everyone should feel free to have both the prime rib and the filet of sole. "Help yourself. I mean that -- there are no waiters." Heh.
Mona's boyfriend is telling his table that when FDR died, the country got over it by bombing Japan, and they should do something similar now: "I say we hang Lee Oswald and then we take care of Texas. Hell, the whole South!" In order to fill in the "..." response from the table, Mona hilariously asks what everyone thought of the sweetbreads, and a woman in a wedding gown tells her she was right and...oh, wait, that's Margaret. I didn't recognize her with the grin on her face. Don't know if the JFK thing helped her gain some perspective on her problems, because it's hardly like the wedding came off without a hitch, but maybe that's the point -- it wasn't perfect, but it was hers, and it happened and she survived. Roger then appears and says the problem is solved, but Mona's like, not so much -- the cake isn't coming. In response, Roger steals the drink out of Mona's hand, and I bet she didn't think that was going to happen anymore now that they're divorced. When he steps away to down it, he sees Don staring blithely at him like he's enjoying this. But considering that Don's got a daughter with anger issues and a likely upcoming divorce, he should probably be looking at Roger with a lot more sympathy, a point that's underscored when Henry Francis enters and greets a young woman, observed by Betty. Jennifer babbles some crap about JFK wanting attention and not fitting in, so it's just as well Betty's attention is elsewhere; she's watching and, apparently, listening as Francis and the woman greet Margaret, for when the woman addresses Francis as "Daddy," Betty breathes a visible sigh of relief. As I've said many times before, she is so not cut out to have an affair.