Love vs. Family: How to Deal with Mom Opposing Inter-caste Marriage?

Hello mam, glad to find you here. Mam, I'm a female, 27 yrs, I have been in a relationship with my partner since 9yrs, but he is from different caste. We both were immature when we started our relationship but our relationship grew stronger as time passed.We have gone through ups and downs of our relationship and are still intact. When I was into 3yrs of our relationship he was doing some odd job, at that time I told my mom about us and she said 'NO' because of caste issue irrespective of his job. Another reason is that my father is an impulsive person who thinks to harm himself whenever something happens, so mom said my father might harm himself if I go forward. At the same time there were some issues in boys family and my brother met them and he said no to it.But I couldn't get away from him, so I stayed. Later I talked to my partner about his family environment and I said that I couldn't stay with them because of the negative impact. He talked to his family and confirmed that after marriage we will lead our life under different roof but maintain the sufficient relationship with his family. We both are now settled in jobs but he earns a bit less than me but we earn a handsome salary combining our both salaries. Now, it's time for my marriage and I want to marry him and he have changed alot for me without leaving his family and he understands me very well. I feel safe with him. Now the problem is my parents wants to get me married and I also want to get married to the whom I loved but my mom and brother are not yet all giving me the chance to convince them. They are trying to convince me for marriage with others but I couldn't do that, that will kill me all my life. They are saying that if I go for intercaste then they have to suffer all their life and my father might do something to himself if he finds out. I love my family dearly and that's why I have been waiting all these years for their approval. I do not want anyone to lose their life because of me. My partner have left the decision to me because of my situation at home and he is supportive of me. My transfer is nearing where I have two options, one is to opt for my home town(not Village), where I can bring my parents to town with me to stay( now my posting is in another city). Second is to opt for different city( where I have to stay with my brother who doesn't approve of my love and blames me for his career). In order for me to convince them for my marriage should stay with my family or away from them and how can I convince them? Sorry' for the long story and I hope I hear from you.

Hey, I was in serious relationship with my boyfriend, we both discussed it with our family. He is a Jat and I a Brahmin. Both the families denied. My mother’s reactions was very rude and she kind of emotional blackmailed me. I have only my mother in my family. After that I tried many times to breakup with him, but everytime we end up being together. Now again his family is forcing him to get married but I am not ready yet to talk with my mother again. What should I do?