Arcane is a masterclass in body language and how to properly use it in storytelling to get your message to your audience without thunking them over the head/spoon feeding it them.
Caitlyn's relationship to Vi vs her relationship to others is a great example.
Caitlyn is almost always trying to create less distance between Vi and her or "fill the gap" between them:
Cait steps over the red line in Stillwater to show Vi the evidence
After Vi ditches Cait in the brothel to jump Sevika, Cait seeks her out and saves her from Sevika
When she gives Vi the medicine for stab wound, they're breathing each other's air
She reaches across the space between them on her bed to caress Vi's face
She chases after Vi following the Council meeting not going their way
Fairly certain, she was going to go look for Vi after her shower if Jinx hadn't kidnapped her
She seeks out Vi after her dad, more or less, says he doesn't want Vi in their house. Not to kick her out but to find some comfort in being close to her (i think this is why she pushed so hard for her to be an enforcer, to keep her close)
Cait also does a fair share of looking at Vi's lips, slightly leaning in, and second guessing herself all within a span of a blink
Vi asks Cait not to change (she already has), so she closes the gap between them, and they share their first kiss as a form of reassurance
She takes down Vi mongoose style and again starts closing the gap between them by betraying Ambessa and helping Vander
Cait slightly/momentarily leans towards Vi's lips when she's pulling the bag over her head
Vi spits in her face and wipes it TOWARDS HER MOUTH and not away
After Jayce shoots Viktor and Ambessa attacks, Caitlyn has ample opportunity to go after Jinx, but she focuses on Vi and covering her back until she gets sliced across the abdomen and then she runs to her to help her to her feet
Now let's look at how Caitlyn creates gaps and space with Maddie even tho they're sleeping together:
Beginning of episode 4, while they're sitting in bed, Maddie tries to close the gap and create some intimacy. Caitlyn, in turn, leans away from her, creating space between them
Maddie is also the one trying to initiate/create emotional intimacy, and Caitlyn swerves her each time
Maddie kisses/nuzzles Caitlyn's neck, and in response, Caitlyn has the quickest expression of "eugh" before fixing her face and moving away from Maddie
Instead of leaning into the intimacy Maddie is trying to give her, Caitlyn gets up to work on something and says she'll come to bed soon
Caitlyn lets Ambessa dismiss Maddie from the room after (more than likely) overhearing the discussion about restarting the council (I really think if this were Vi, Caitlyn would've pulled rank and told her to stay)
Maddie is also very absent from the rest of s2p2, and given how we've seen Caitlyn actively seek out Vi in her absence, she honestly doesn't seem to care where Maddie is or how she's doing
And none of this is explicitly told to the audience thru dialog. All thru body language. And i just think that's really neat
