Yeah, that (S2 V4 Ch4) has moved from subtext straight into text. Nicely done.
It's a very sweet story, even beyond my squeeing little shipper heart. I like particularly that even though we're hitting the unwarranted jealousy trope, it's not what triggers the confession, just what moves it up.
(It's also nice to see Nico actually having fans, and doing a good job at senpai-ing; her KayoRin-fan classmate repeatedly deflating her keeps the cosmic scales balanced.)
The only sour note is the weird heteronormative riff at the ramen shop. I mean, we can maybe play off Rin's concern about girls giving her chocolate as her believing that confessors are seeing her as a boy substitute, which is congruent to her established body image problems, but Maki's "Oh, they can't be serious because it's not hetero" is a bit grating. (And Umi knows damn well that at least some of the girls confessing are serious about dating, at least; that's what V1 Ch13 was about.) Maybe it's just another case of Maki talking out her ass and the older girls letting it slide because Rin seems to feel better?
