I think she is now useful to her father, that's all. The fact that someone belonging to the crown injured the daughter for no reason can return to the family itself. Whether he wants to harm the imperial family or wants to get some favor. Like he could ask for compensation that the prince marries his daughter so as to enter the imperial family (the other prince, who is probably worse than the one who hurt her, so I foresee this is the most probable scenario, because we are still in difficulty "never a joy")