@Maomao
I feel there's more to the whole thing than what you said beacuse i can't really just say that's what happened based on this chapter alone....Looking back so far on what we have seen on MC i don't think it's the exact same thing he did, maybe what he did was actually like confess his feelings or something,
And for Noona i feel she actuallly knew he had feelings for her, before the whole thing which made them drift apart, If she knew he had feelings for her and she wan't comfortable with it before he confessed or anything she should have drawn a line,
Just my Opinion with more Chapters we will actually get to know what happened