I understand that people are mad at the prince. But he wasn't really completely in the wrong either since Violette truly did a lot of horrible things in the past. We know it, she knows it. However, now that she is trying over again, at least give the prince a chance. He's clearly not a bad person at heart.
Now, the person who should earn your anger is the father. We know that before her "retry," he was already not very kind to her. Now that she's trying to correct her life, he's still a jerk. He should be the one where you anger should all be directed to.
Anyways, go go go Vio-chan!