In real life, there are many people who relate to this one... it is really hard to forget someone who wanted you first (especially to Haesoo's POV). Readers need to understand that Mincheol's backstory is necessary for us to understand Haesoo's suffering to let go the man he one's loved. (us what haesoo said, it really is a waste that mincheol changed) At last, this is only a representation of how quick can people change despite promising to love you forever...
In real life, there are many people who relate to this one... it is really hard to forget someone who wanted you first (especially to Haesoo's POV). Readers need to understand that Mincheol's backstory is necessary for us to understand Haesoo's suffering to let go the man he one's loved. (us what haesoo said, it really is a waste that mincheol changed)
At last, this is only a representation of how quick can people change despite promising to love you forever...