Butterflied Lover S01 E21 When to Return to the West?

Princess Bao Zhu falls unconscious in Ling Chang Jin's arms. He temporarily preserves her life using the Butterfly Curse. Carrying her, he seeks out Madam Yuan with the intention of riskily drawing the curse with blood to save her. After a month, Princess Bao Zhu regains consciousness, but Ling Chang Jin is nowhere in sight.