A toxic idiot

Heiner has a very big inferiority complex towards Annette. He always thought and still thinks that he's so inferior that no one can possibly love him, because even he doesn't love himself.
That's why when Annette told him she loved him he did not believe her and wanted to hate her but he couldn't and he's confused, he doesn't even understand his own feelings. He forced himself to hate her and blamed her for things she didn't even know about because if he were to admit his love for her he would feel guilty towards his younger self and all the people who died because of her father.
As a result, he thought that the only solution that would satisfy his conflicting feelings is to keep her by his side, but for that he needed to break her so bad that she wouldn't have the energy or strength to leave him.
He didn't know anything about the real Annette, that's why he didn't think she would dare to unalive herself. What a toxic idiot