Dang, good chapter. Since no one will legitimately think she wanted to kill herself, Kuarn will probably be in legitimate trouble. The Duke is gonna be PISSED that his bargaining chip with the king almost died. Plus, it would be a horrendous scandal. All it took was risking her own life to finally get back at this bastard.
Bad news for the future though. She won't back down from death if it means being stuck in that family.