Need to know my legal rights

Hi, I am 37 years old, married from last 6 years. I have been facing some issues in my marriage. My husband is in aviation sector and is away most of the times and when he is at home he spends all time with his friends. I have even heard him talking to some females and I suspect he is going out casually with many girls since he is not indulging in any activity with me. We had an argument in November 2020 where I caught him talking to and partying with girls and he was physically abusive. I called up my parents and they threatened him to file police complain so he asked me to leave house and did not allow me to come back for a year saying that he has moved on and we are very different people. He is verbally also very abusive when he talks about my family and always blames them. After spending one year with my parents I came back with hope of reconciling and saving my marriage, however he is still not changed. He says he wants his me time and is always out. We have not indulged in any relationship from last few years.. he denies conjugal rights to me. I have tried to confront him many times and earlier he use to give excuses that he is tired of growing old but now says on my face that he cannot involve with me. He threatens me of divorcing since first year of our marriage. I have lost confidence in myself, have even gone through marriage counselling alone , decided to involve his parents too but they are also very unbothered, unaffected by this situation. I don’t want to end my marriage but my husband keeps pushing me and says that I should give him mutual divorce without involving our families and it should be peaceful. I feel mentally harassed by him and his family. Last 6 months after I came back to his house I’m trying everything in my capacity to amicably make him understand that we are married and he needs to take my responsibility as a husband. Now after going through all this I feel I should leave his house. I have got an opportunity to travel to Germany for official work and I want to move there for sometime to see if he and his family realise the seriousness of this situation. Can I leave for Germany without involving in anything legal yet? Can he throw divorce papers and make me sign them like he says without my consent? What are my legal rights here? If things go worse what is legal advice for me to handle this situation? Can I pursue legal proceedings while me being in Germany? I don’t want to lose on this opportunity and at same time want to give it a try in hope that may be my travelling there will bring some sense in him and his family and they will help their son to take this marriage seriously. I feel he and his family are mentally always harassing me and blaming me for what my father did when he summoned my husband to file police complain, my father did not file any complain as we thought his family will intervene and matter can be resolved amicably but his family does not do anything regarding this matter. Please suggest.