Need help with my relationship with my mother

My mother and me never have gotten along. My mother is a piscis and I am a gemini,I think that is one of the problems we have. The other is I was molested by my stepfather when I was younger. I told my mother when this happened and she never believed me. She then kicked me out at the age of 11 and sent me to live with my grandmother and he claims it never happened. I was then upset and pressed charges. We went through this whole legal procedure and now I am 23 married with two kids. He is still married to my mother and now it is back firing on him. My stepfather was going to a trip to Mexico and when he was re-entering the United States they saw that he has a criminal record for child molesting and they revoked his status as a legal resident of the United States he is now in jail waiting for his deportation hearing and my mother says its all my fault because of my big mouth. She says it should have been kept in the family but I never felt the same. Now this has been a bigger strain on our relationship and she wont even call me to check to see how her grandchildren are doing. What can I do???????? Please help me.