Exactly! That’s why the orange juice was very symbolic. Blondie knows that he “likes” sparkling water, which is why, in the end, he was dumbfounded when he saw Seojoon grab the orange juice and heard that he drinks orange juice all the time. It looks like just a small detail showing how he doesn’t know anything about him, but it played a huge role in the idea of their 12-year friendship, that all this time, Blondie only saw himself and did not give any importance to their relationship because he was already confident in what he thought he saw, yet he never truly observed.
No literally, and people are like “How is blondie supposed to know Seojoon likes him if he hid it” like how are you going to expect Seojoon to be honest when the problem (being that the blondie is still stuck on his first love) presents itself in front of him, it’s a deal breaker for most people to confess to someone who’s in love with someone else, obviously he’s going to hide it cause he knew what he’d be risking
I hate how some people get upset with comments that are angry with the Blondie. And I understand but at the same time they’re not entirely invalid, the problem isn’t even the fact that the Blondie didn’t like Seojoon back but how he barely knows Seojoon despite knowing him for TWELVE years. “How could the blondie know Seojoon’s feelings when…” yeah it’s not just about that bro, after the conflict it was literally said that Blondie never gave himself a chance to know Seojoon thoroughly, never asked about him or pried. Meanwhile in the flashbacks it’s been said that the Blondie is incapable of listening when Seojoon is talking. Seojoon already knows what he wants them to be, the Blondie is the only one who needs to figure himself out and be more ATTENTIVE.