there are some plot holes that can be justified

Sabina is 28 year old so she was 16year old 12 year ago when she left her husband and child
Korean age system Convert into English age system she was just 15 year old and
14 year old when she get impregnated by that TAXI driver( Statuary rape) and then forced into give birth because and raising those child into a forced marriage,,
so what SML did to her ex husband was RIGHT THING, he saved her from her rapist

Sabina's mother has ultimate RAM in her head that she can remember every single detail and faces from 28 year ago
almost 3 decides, that just impossible for even Einstein that he remember ever single detail from 3 decides ( about HAN SO MIN )

Male lead is not easy nor he is cold jerk he is human who start having feeling for FL little by little
he sometime say mean thing he and regret and try to become better...