Matrimonial dispute involving NRI

My husband has citizenship of Canada, we got married in India, since marriage me and my family has faced mental torture and abusive behaviour from in laws. I have not been able to live with them for more than 2 months. When i went to canada to my husband, after one month when in laws visited there, i had to come back to india due to their abusive behaviour. Now since January, they have hardly tried to reconcile and reply back to my constant efforts to live back with my husband. Now my husband has send a legal notice stating that i have stopped all contacts, hardly lived with them, and I have to stay with his parents for 6 months in india before living with him again. I don’t have any issue for living with his parents but there abusive behaviours is what we are concerned about and also about their unclear motives since they want separation whenever they talked verbally and are the first one to send legal notice. We are also afraid if he files for divorce in canada than what would happen since I cannot afford to go there or fight it. He has citizenship of canada and I have PR.