its funny how he calls na haesoo as his wife everywhere and every chances he get when they were 19. But never even calls her as family in the present, even denies her as wife and ashamed of her on the previous chapter.
taeha orchestrated everything so mincheol would find a job and find someone else, so taeha can have haesoo all by himself. Its implied around the chapters before mincheol and haesoo had a big fight.
haewol got his papa's smile, but definitely a son of his daddy euihyun