Marrige problem

Respd Sir, I am a muslim male leaving with my mother and one unmarried sister, in aug 2016 I got married to a muslim girl according to muslim law i.e. in front of one vakil and two witness, ( till today I had not registered my marriage in any court or registrar office). Starting everything was good but slowly she started problems like mental torture to my mother and sister and even to me by ignoring us in every respect which is very difficult to me to express. So we had decided to send her to her paternal home to realized her mistake , and we had stop to talk her over phone for sometime. When she had seen that we are not picking her phone she started to speak with my relatives complaining about us everywhere and even she had share our (me and she) personnel (VERY PERSONAL) matter which should be kept secret by both of us. After this it is very painful and shameful for me in front of my relatives and even in my own eyes. Now I request you to please guild me to handle this situation LEGALLY. FAZAL