As much as I like the redhead, no he did not clock his tea at all. What he did was be rude and ignorant. He's literally just a stranger, an acquaintance because of his sunbae and he just goes on and starts assuming stuff about somebody he isn't even close with?
He's an outsider, and sure, he might have an inkling already that his ex is MC's current bf, but that doesn't warrant him the right to insult him like that. Even if he means well at some point, and even if he's RIGHT, it's just plain rude and he shouldn't have said anything, if he really didn't care like he ducking said. Comments pmo.
He's an outsider, and sure, he might have an inkling already that his ex is MC's current bf, but that doesn't warrant him the right to insult him like that. Even if he means well at some point, and even if he's RIGHT, it's just plain rude and he shouldn't have said anything, if he really didn't care like he ducking said. Comments pmo.

Spoiler!
I'm gay.