Later, they're sitting on the couch watching cartoons when Glen turns and says he has something to tell her -- he doesn't like ham, or meat of any kind. Presumably, that's what was on the sandwich she gave him earlier, so Betty offers to make him some macaroni and cheese. Aaaand there's my dinner solved, thanks. Glen then reaches over and takes her hand, and while Betty tries to smile this off as something innocent, Glen soon pushes the envelope: "I came to rescue you. We can go anywhere -- I have money." If being propositioned by her addled father was enough to push her to the edge, I'm amazed that having an eight-year-old offer to be her knight in shining armor isn't the last straw. I mean, at some point you have to start thinking God has a sick sense of humor. Carla then returns with the kids, putting an end to the creepy, and after a brief mention of her father, Betty sends Glen off to engage in some thankfully age-appropriate activities with her kids. When they're gone, Carla asks what Glen's doing there, but Betty doesn't take the time to answer, instead looking up a number and picking up the phone.
Sometime later, Sally and Glen are watching TV when Betty opens the front door. She then steps into view and asks Glen to come join her, and it's not like there's more than one likely candidate here so the care in being sure that the blocking doesn't reveal the Mystery Person seems a little extreme. It is, of course, Helen, who looks a mess as she says she was worried sick. Betty chimes in that Glen has to go home, and Glen submits to a hug from Helen but fixes Betty with a baleful look and says he hates her. Helen's horrified and demands he apologize, but he won't, and in fact reiterates his statement. Betty: "I know. I'm sorry." But it's time for her to be the caregiver now, and indulging a little boy's fantasies no longer fits in. It's her time to put away childish things. Helen rushes Glen out of there, and then Sally appears with a sad and questioning look on her face. You can see where she'd be sensitive to a male leaving the house under acrimonious circumstances. Betty, however, merely smiles and suggests they wash up for dinner.
Paul's in the van with Sheila, blathering about advertising and Marxism and how the "consumer has no color." Sheila looks entranced, but the one other white guy is like, "Thanks for making us look like windbags, Whitey."
Betty's working on some laundry when Helen shows up and says they really need to talk. They sit, and she tells Betty that she doesn't know why Glen was there, but "this" has to stop. Betty meets her gaze levelly and says nothing's going on, "except that Glen feels alone. Honestly, I don't blame him." She goes on that it's obvious that Glen depends on Helen for everything, and she's supposed to be taking care of him. "You're his mother, and he gets nothing." Helen looks thunderstruck at the obvious truth to Betty's words, and offers that she thought with Dan (heh, I forgot about the Dan/Don thing; it did end up paying off exactly as you thought it might) out of their lives, things would be different, but Glen is right, and she's not a very good mother anymore. After a long moment, Betty decides that she's found the right person in whom to confide, and tells Helen that Don isn't living there now. Helen's shocked, and after Betty goes on that they haven't told the children, Helen haltingly asks if it's over. Betty says she doesn't even know, and Helen says that's the worst, but I have to say that everything about Betty's rather assured manner says she does know it's done. Helen asks if the kids see Don, and Betty replies, "He takes them to dinner. They don't know what made them so special all of a sudden." Helen confesses that for her, it wasn't that different without Dan around. Betty pauses to consider how that's true for her too, given how absent Don was from their marriage, before saying wistfully, "Sometimes I feel like I'll float away, if Don isn't holding me down." Helen, on the same page, says that the hardest part is realizing you're in charge, and Betty looks at her, knowing that what she says it true but still looking ready to try.