Sobbing so hard for keigetsu, like real tears won't stop flowing. While reirin has thing go right for her in every way possible, because she already have such low self-esteem, she sees it as her being incompetent and most of the time there's nobody for her except reirin, even leelee, reirin's handmaid, reirin's brother were there for her because of reirin.
We see it time to time again reirin have so many people there to comfort her, but keigetsu doesn't have that. Honestly i still wish keigetsu is the mc just because i can't stand her being so miserable
I'm gonna take a more "positive" route and think that this is definitely a misunderstanding problem.
From the quote small lies cause problems,
so from that small lie of not being able to come eat the stew because of group project -> hyeonseon found out it's a lie, there's no group project -> probably more yeoreum's dark past uncovered when yeoreum tried to hide it causing more misunderstanding -> hyeonseon thinking yeoreum aren't satisfied with him and attracted to other guy -> to this last scene where he thought there's smth between yeoreum and this guy.











My guy fanboying so hard that in his introduction he use his twitter username, and his real name need to be exposed by his idol