Emitonal abusive relationship

Hi, I have been in a emotional abusive relationship who has been married and have wife and daughter. It was an extramarital affair for him. I have been abused verbally where he has not left any evidence to show up and use to beat when asked about his messages and so. It’s been 5-6 months that I have been trying to end the relationship because I was feeling that I’m being used and with domestic violence and sexual assault (forcing for getting intimate) or having physical relation even when I’m not interested in it but he now says that he cares and love me but it wasn’t when I was with him. We were into physical relationship where he has clicked private photos assuring that he will not be using them in future but now he has trapped including a third person who tells that she is his sister-in-law (cousin) where she has printed out all are photos and she showed that to my mother and now she has been asking to meet my father. They are exposing my nude photos showing I’m the reason to make him fall for him. And he is forcing me to get married because his wife knows about the his extramarital affair but not expressly but his family members knows about it. Also he is a lawyer by profession in India and I’m so very afraid about it. He has trapped me and forcing me to get married. I was in relation with him and now I don’t feel safe with him and have no meaning to live for. I don’t understand what to do and my parents are being insulted over this by showing them all pictures. Also, my question is in initial phase of relation we have made promises that we will be together and can go ahead with marriage but after being quite in relation for long now I can't pretend to be happy and emotionally satisfied. Therefore, I have decided to end this relationship and not go for marriage. Is promising being together and getting married will go against me?