OH MY GOD YES Kurumi you're jealous bruh! I don't give a damn if this 3rd-person-fake-rival-jealousy thing is cliche, as long as it helps Kurumi realizes that she loves Ruriko!!!
Yeah this feels very forced lol. Ruriko clearly finds her annoying and only knew her for like a month.
.
Yeah, idk if jealous is the appropriate response for a situation where the person you like is showing nothing but annoyance over someone they knew for a month lol
there is clearly fondness there as well. Their friendship might have been brief but Ruriko got along well enough with this new girl to:
1. Talk informally with her (this is like, a really big thing for Japanese)
2. banter with her like close friends do. Their interactions are really playful too.
And while she acts annoyed, Ruriko does care for Rio, because she knew her dating history and told her to watch out for red flags and agree to treat her even though they've just met again in a good while.
Tbh they're acting a lot like me and my friends whenever we try to annoy each other in a playful way.