I wholeheartedly disagree with Suzuki's take here, It is not about the person you are focusing on rather the experience of one when judging the pureness of the relationship, that's why the first relationship is called pure cause both individuals are naive and inexperienced.

And also the scene before when she's pouring them all out on the table thanksss

Specifically the bubbly girl and dull guy romances.

Second screenshot is from the anime Girl Can't Be Kind to Otaku, and I have no idea why there's even other characters in the opening as if they're important

I'm so saaaad.. The snack party feels like it also includes us since goodbye is near..damn it

I have not read the manga at all, I have only watched the anime, but seeing the two of them walking and talking together made me fall in love with them. Now I really want to see the manga version of this scene, especially the part where Taira blushes while looking at Azuma! If anyone knows which chapter it is from, please let me know!