My husband asking for divorce in 4 months

Hi, We got married before 4 months. We both are working in private sector. Basically he is living in abroad. he stayed with me for 13 days in india. We were not happy because his mother has some doubts on me and my family. She has initiated the problem from day 2. I was not reacting to her directly but i insisted him, if she continues to do this, our family life will get spoiled. Moment i informed him if you are in india, then i will live with you in your house. Also I told, if u r not here in india, then i wont go to your house and live with your mom. One of my relative who arranged this marriage is against us now. so my relative told many bad things to him and he started fight on that basis over the phone. One fine day, his mother called my mother and uttered so many bad words. The problem was extended again and again. I tried convincing him and told we should pass all this hurdles. He is speaking one day nicely and other day asking for divorce. Maximum times he will block me in all the channels. Recently, he is very harassing me and asking divorce. kindly suggest what should I do?