They never dated in high school you can say they were class mates they barely interacted they dated in UNI and…
Obviously because in drama before the fl dated him the was one he was dating and then the fl dated and after that they broke up so it was not detailed in novel they just briefly mentioned it
I forgot i read quite few but i think rebirth of nobel daughter ill fated consert that one it was fl revenge story i hated how romance started lated and it was not enough