so basically this story literally revolves around misunderstandings. yk the dagger that her father gave? it was intended to be used as a self defense tool not to to kill herself
max was there to protect her since him and the father had an agreement with each other that the father will help him overthrow the emperor in exchange to protect her daughter.
juvelian just misunderstood her father's actions and killed herself (though i don't blame her since her father is quite cold to her) .
note that i only got these spoilers from someone else, i'm sorry if its not clear enough
someone pls spoil the rest for me