I think my favourite moment from Ep8 has got to be the bit where Seok Ryu tries the cold caramel popcorn that Seung hyo vrought for her despite her ex giving his two cents on it (which literally nobody asked for). That's more than just her choosing him. That's her saying "you know me so well, enough to know that I am craving it. nevermind that it's cold now, I still love it."
in a lot of ways, I see that as their friendship and romance. the writers made sure to use many metaphors to depict their friendship and romance—from kilns, the rainbow food that Seung Hyo liked, banana milk, to now caramel popcorn—to show that there's a part of Sepk Ryu that her ex can never have. it's a lot like what Seung Hyo tells his ex: he doesn't like Seok Ryu because they're childhood friends of the opposite sex, but because it's her. Because it's Seok Ryu.
The fact that they both recited the lines of Toy Story to each other with the excitement of five year Olds is everything I ever needed to see. this is why this trope works so well when it's done right: there's something deeply intimate about having lived together. there was no "finding" each other because they've known each other too long to do that. they've already had each other, first in friendship, and later in love.
