I was once watching documentary, a girl got kidnapped and made slave by a man forore than 20 years, kidnapper rape her and did awful things to her, after police caught him and free the girl, girl still wanted to live with kidnapper, saying "let me go to my master, he loves me" and finally committed suicide. It is really interesting after suffering for a long time, now person can not live without it, and try to justify how amazing the suffering is.