Hes a single dad who never remarried, so im guessing the "not again" was refering to FL's mother dying suddenly from either ilness or other means.
When you think about it, the dad always comes off as cold because he has many who seek to use him, so if he came off as loving then FL's life migh constantly be in danger.
Yup you correct,he turning time before juvel die
This novel have 3rd timelines
1.juvel who thirsty about love and thought the father don't love her
2.FL modern era
3.back tu previous life but FL don't have any memories about the past life
Actually he turn back before FL die,and became lil bit soft
1st timelines he really cold cause don't want the emperor know what his weakness (his weakness is FL)
When the father panicked when juve fainted, he said 'not again'. Does this means the father remebers the past or sth similar happen before or...?