Ok, this conflict between them it's just too forced. What's wrong with this guy? "I wanna die, but I kinda don't wanna die. First I need to take care of this girl, but I need to tell her the truth. You know girl, I said I love you, but I really don't and I have my ulterior motives. Yeah, i saved you from hell and gave you somewhat normal life, but I don't really love you, so you will hate me now. Ha! She definitely won't accept such awful truth! What? She accepted it? Nooooo! It's not right, why is she accepted it? Reeeee! Oh wait, I wanted to die, didn't i?"
FFS, just go and die if you don't care, and if you care then shut up and support her without your dumb tantrums and conditions, don't make her life even more complicated and messed up than it already was.