I feel that giovanni doesn't want to do it because he fear that he would lose felix as the one that can help him with the sickness....
YES EXACTLY MY THOUGHT AND I TREAD THE RAWS SO I THINK THIS MIGHT BE THE CASE
This is exactly what I have in my mind and I was like--- felix : so you dont trust me,?????? (︶︿︶)
I feel that giovanni doesn't want to do it because he fear that he would lose felix as the one that can help him with the sickness....