His faith in Esther is completely restored when, in jail, she repeats her statement that he is indeed her friend. After the Dietrich awakens his thirst for blood, Ion immediately begs Esther to kill him whilst barely using his willpower to restrain himself.
His faith in Esther is completely rekindled when, in prison, she affirms that he is truly her friend. Following Dietrich's awakening of his violent desires, Ion urgently beseeches Esther to put an end to his life, struggling only slightly against his willpower.