i really love nick's "gangster rio had to whip it out, show the soccer mom how big it is?" it's so diminishing to both beth and rio and so indicative of how reductive nick is by only seeing them as these stereotypes when we know that they are both more than that and that their relationship has a much wider, deeper, and more meaningful scope than that.
i love, too, that it's in the middle of a scene that shows how little nick knows. not only does he wildly misinterpret rio's reasons for murdering lucy (for beth instead of a punishment for beth, to somehow impress beth rather than to intimidate her) he doesn't realize that rio has never had to try and impress beth. she was always most attracted to his natural charm, confidence, and control. also, while nick wondered if there was more to beth and rio's relationship at rosa's house, he didn't know. he's on the outside, prying for information—which he only gets because rio's chafing against nick's intrusion. rio's been just as protective over the details of his relationship with beth as she is, but he can't help but confirm here, pushing back against nick's suggestion that rio's trying to sleep with beth to show that he's already been successful (the detail i love extra is that rio loves to play with ambiguity but here he's decidedly clear: she knows AKA she hasn't forgotten AKA it was memorable). still, he's flippant about it, laughing, acknowledging only the sexual aspect of their relationship—nothing more.
i love this moment as a parallel to dean asking beth if rio listens to her more or encourages her more than he does. like nick, dean is an outsider to the relationship and he can't understand it. dean also typically sees beth and rio as stereotypes of themselves: he struggles to recognize that beth is more than a simple housewife or that rio is more compex than a cardboard cutout "gang banger." when he asks these questions of beth, it's not because he believes it's possible—it's the opposite. he is so baffled by beth's interest in rio (as nick seems to be with rio's interest in beth when she's "merely" a soccer mom) that he can't fathom that rio could actually treat beth with more respect than he does.
it's kind of fun that they play in different ways too: nick minimizes what beth must mean to rio, and dean hyperbolizes it. they're both circling the truth, though. although beth won't admit it, those are part of the reasons that she's attracted to rio. and though nick's wrong about the details, there is a way in which rio killed lucy for beth—it was, after all, in lieu of her own life or that of her girls' (idea credited to @riosnosestud).
like rio, beth flaunts their sexual relationship in order to put dean in his place like rio did with nick. but also like him, she diminishes what they have, saying that she just "really likes having sex with him" (my favorite detail being that she uses the present tense despite the fact that she and rio are very much broken up and he's just unscrupulously tossed her out of his loft—not unlike rio showing that he's bothered nick might think nothing's happened between them so he yanks their history to the present despite the fact that they're in a low spot after the betrayal and arrest).
simultaneously, they both want nobody to know a single shred of a detail about what they are to each other AND they can't help showing each other off too (not only in these respective scenes, but with rio's hand on beth's back, or with beth correcting annie and ruby that it was a "one and done").
the fact that the episode ties it up with a neat bow showing that rio and beth are the same and that they both get themselves into trouble just by being themselves—underscored in both their interactions with nick and dean—is a really nice touch. that final moment between them where they side-by-side for the first time is an effective way of showing how much they are on the same wavelength in a way that they are definitively not with people that have been their supposed other half for most of their lives.













