Peggy's getting ready to leave, and offers to run any errands at the library her mother might have. Her mother sighs that she should probably renew The Agony And The Ecstasy. "It's takin' forever!" Heh. Peggy's almost out the door when Anita whispers, "Aren't you gonna say goodnight?" And here you thought the loony bin was news. Peggy stiffens, but goes off to one of the bedrooms, in which we see a crib with a young boy who can only be Peggy's son, and a bunk bed with another boy of about eight, who brightly greets her: "Hi, Aunt Peggy!" I'm not completely sure if it's the mother or the sister who's raising the child, although for appearances' sake alone it seems far more likely that it's Anita. And it's not like it matters, anyway, because this would be effed up even for non-Catholics either way. Anyway, Peggy looks guilty, closes the door, and strides on out of there.
As she cleans up in the kitchen, Betty tells Don some random gossip about Helen Bishop. Talk then turns to weight and the fact that Carlton has put on a few pounds, which Betty thinks indicates he's happy. When Don disagrees, though, she takes that to mean Carlton said something, and snits that he should be not merely happy but should be showering Francine with love, "after what he put her through." Of course, the undercurrent is that Betty is still seething at Don for what she perceives he put her through, and Don, picking up on the mood that's been building through the evening, tells her that he's not going to fight with her. "I'll say whatever you think I should say, but I'm not gonna fight with you." Duck only wonders what he has to do to get the same deal. Betty, her anger only augmented by being called out, stomps away with the kitchen trash to the porch, where Don can see her light a cigarette and sit in silence. He sighs raggedly and heads out of the room...
...and is then checking on his kids, which is another indication that he's become a family man just at the moment his wife thinks the least of his spousal and parental abilities. If the irony is making you feel bad for him, I'd suggest you ration your sympathy.
In their bedroom, Pete laughs a not-entirely-mirthless laugh and tells Trudy about a trivial argument he and his father had the last time they saw each other. He goes on that he and his dad would "fight about facts," as his mother described it -- they'd argue about things that had proven and verifiable answers. Trudy, upon hearing the specifics, settles the fight in Pete's dad's favor, prompting Pete to tell her that when he woke up that morning, he felt fine for a minute, but then he remembered. She encourages him to focus on the good times, and she's being very supportive but I still think Pete's going to need to occupy his mind with something more substantial. Or at least existent. I should note, though, that despite her desire for a kid, Trudy and Pete seem to have settled into married life far more harmoniously than I would have guessed from last season. Who knew?