Oh my god, this "side couple" is just too strong, I love them. Sure, the old Marika wouldn't have given Shouma any chocolate but boy, she's your real girlfriend now. That jealousy bit from her was delicious. And it wasn't even honmei chocolate that he got from that girl. Since he didn't get to taste her choco first, here she's not the first to give him one either, so it's only fair I guess.
But I love how they set boundaries and be clear about him being allowed to receive obligatory choco. Proper communication between lovers, you love to see it. How are these two so cute now? Man, this is adorable. One wouldn't think they'd ever become like this when they first started dating in such a toxic way. They're just winning!
The way both Sawa and Masaki blush makes Marika and Shouma's love look positively mature by comparison. But as high schoolers they're still kids, so I'll give these (cute) late bloomers a pass. They are getting somewhere, just not as quickly as those who walked before them. Baby steps... just no regressions, please.
She gave him three(!) chocolates, unlike the other girls who only got two each. Maybe the third one is honmei... it's literally and unambiguously heart-shaped y'know? Unlike some vaguely heart-shaped nut on a chocolate cupcake like in a certain other romcom that got some dude all hyped up by mistake...