As a man, that hurts, but as a human being, he deserves every second of pain, and even pain is not enough to make him feel remorse, well maybe losing his dick might help.
I know he's a scum among scums, but damn, I felt that. It must be a male instinct or smth to feel the suffering of other male specimens when it comes to the genital department.
Didnt expect the girl to kill herself. But it makes sense, she lived her life thinking she was loved by her boyfriend. Then she got tortured by him and even if she goes back to her life, other people will be disgusted at her. So in her mind suicide was probably the best choice.