Greg here getting his own back with some uncomfortably extended laughter of his own (and Rose’s lack of expression sure is something).
Okay. RANDOM THOUGHTS TIME.
1) So all the bubbly laughter and teasing really was just ‘playing along’ with Greg. She wasn’t engaging with him on a personal level, because her head was stuck on how on earth she was supposed to relate to a human. And her answer was to get horny on main 24/7, which is a fair assessment of the human race tbh.
2) I guess Garnet’s advice to get real and honest was equally about wanting Rose to open up more? Obviously Pearl thinks she and Rose are permanently giggling at a sleepover and swearing to tell each other everything, and she will one day be devastated to learn Rose had a cat-
2a) While we’re on that thought, I don’t think Pearl is sharing much of herself with Rose. Pearl is definitely not hiding her authentic, emotional self from anyone, but she’s also not naturally forthcoming either. Like this episode opens with her choosing to channel her turmoil into putting on a performance for the guy she hates instead of talking to the gal she loves. So does Pearl feel angry because she feels Rose is the one person she can be real and open with, only to discover Rose didn’t actually feel the same? Or is it more of a case that Pearl doesn’t think she needs to offer her authentic herself to anyone? Like she clearly isn’t going to Rose and sharing how she really feels about Rose dating humans, so Pearl feels somewhat hypocritical on this front.
More 2) So obviously Pearl thinks she’s super bff’s 5ever with Rose. Garnet and Amethyst seem aware that Rose holds the burden of leadership which makes her stand apart from the team, even though it’s just the four of them left in the entire world so no one really needs to do that any more. We see this attitude with Garnet in the current day as well.
4) But also this concern about playing along with humans is very definitely a ROSE thing. Pearl would never awkwardly stutter about how she isn’t a person because she only cares about being a gem. Garnet is super into being her real authentic self, wouldn’t change that to make someone like her. We know that during the war Rose stuffed her real feelings down in order to act as a leader (I guess dating Some Guy causes her just about as much stress as fronting a war effort).
I think it’s not that Rose isn’t a flirty, pure banter sexpot, or she isn’t a powerful-yet-loving general. It’s that Rose is super aware that she’s a lot of things to a lot of people, and is deliberately choosing which parts she emphasises as a response to what she thinks people want from her. Her real self seems to be getting a little lost in the process.