Physically and mentally harassed about to die doesn’t have way to get

My known had relationship with a guy for more than 5 years . He promised her to marry, physical with her singing that 5 yrs of time . At the end he said that will not be able to marry bcoz his family will not accept a girl who belongs to SC cast. He was saying that can’t marry due to Sc cast . Girl belongs to a poor family and can’t do anything. He still using her for his lust . And asking her to send her nake photos. But doesn’t want to marry her . She is depressed cant say anything to her family bcoz if they came to know about this god knows what will happen. So here facts are :- He doesn’t want to marry bcoz girl belongs to SC cast. She doesn’t have enough dowry to give him bcoz financially not sound . Using her for his lust from past 6 year by saying will marry. Now not willing to marry her and pushing her to commit suicide shows fake love in front of her. what girl should do bcoz if she will file police FIR her parent will come to know about this will die