Endgame Pairing is Not Obvious

heavy love triangle, FL is dating SML for much of the drama

ML has a first love who returns

ML is a widower with a daughter

FL is married/divorcing

FL is married to someone else at the beginning

ML is in love with another girl before and for a while after he marries the FL

FL was married

love triangle that could go either way, FL has the childhood connection trope with the SML

heavy love triangle, FL is initially engaged to the SML 

FL is married to someone else at the beginning

FL has the childhood connection trope and engagement with the SML, heavy love triangle

SML gets the girl

FL has an ex boyfriend who died

FL is initially close to and engaged to the SML

FL was engaged to the SML in her first life

FL was married 

ML has an ex boyfriend

ML had a first love who died, and at first it seems he's just settling for the FL due to her resemblance to his lost love

love triangle in which FL loves the ML but appears to end up with the SML

FL is initially the SML's mistress and the ML is her employee who is secretly in love with her.

FL is engaged at the beginning

FL is a widow

FL is initially in love with the SML, ML has traits of a SML

FL has an ex husband

FL has a long time crush on the SML

Reverse harem, love triangle with childhood friend

ML ends up with SFL, despite having the childhood connection trope with the FL

FL is dating someone else at the beginning

FL is married to someone else at the beginning

heavy SLS, FL has a first love who is a ghost/in a coma and for a while it's unclear whether she'll have a second chance with him or choose the ML

ML has a fiancée at the beginning and wavers back and forth for a while before choosing the FL

FL is dating someone else at the beginning