How to persuade girls to hurt themselves?

Self-mutilation is a kind of hatred for yourself! I think if you want her not to do this, give her a hug! Tell her you love her, tell her you love her, tell her you want her to be happy! Go tell her. Don't expect her to come back to him. If they can go back, they will be together. If they could still be together, she wouldn't hurt herself like this. Stay with her and tell her your love. Such a girl lacks love! Go and love!