That is very unpolite to leave a guest like that… and it even more unpolite (and disrespectful) from Minhae knowing what she (and they both) knows from the previous life….
And Kanghyun and the mother did not even question why Yuna and Minhae stopped living together ??? I would have like to have some images about that… ‘cos it’s quite a big thing, 2 childhood friends who lived together and were so close who part ways so suddenly…??