Husband wants divorce as wife disregards husband's family

got arranged married 3 months ago. She is central govt. employee and I am private employee living with my parents residing in govt. accommodation allotted to my father in Delhi. My mother is paying for her expanses and she never disclose her salary to us while asking replied that she will not contribute on monthly basis but can share when in need. recently She got selected on higher scale in some other city 700 km far on 7th feb but did not inform anyone in my family till 17 feb . on 17th her father came and took her to their home and said she will be joining the new job from 1st march. I and my family are not convinced with her new job as far from home and resident in nature(she has to stay in school accommodation NVS). Although she is saying that after joining will take Leave without pay to live with me but it sounds bluff to me any my family. Meantime while checking her mobile I got to know that she disregard my family to her known and also had boyfriend before marriage.