• Mutual concerns divorce

I married on March 2016 by Hindu mythology. Me and my wife is govt job holder . I m in Bihar and she is in Delhi. After elapsing of one month of marriage , she was denying me, any type of physical or sexual relationship. In the later month , she also deny the sex. In the month of nov she alleges me impotent. And despite there or there family support ,I checkup my self and give the report, mentioning not any type of impotency. But her as well her family without any giving proper reason regular allege me ,about my impotency. 
I forced her to give divorce ,to,me if they are not able to listen or at least solve the problem .
At initial stage they deny me any type of divorce to me. Now one of her uncle come and called my father ,that she is ready for divorce but whatever be given in marriage should be return. But after that,, there family did not give any response,how the agreement will take place . .

My questions are.

1. Despite she is educated , why she is not trying to understand the things ? She is regularly deny to contact any doctor.. despite my several request ,she and her family don't interested to go to doctor at least for my checkup.
I urge her also ,to checkup herself,, but she regularly denies ??
2. Her family is not open about what the divorce procedure they want ? First they tell they want mutual divorce . But they are not agree on any condition , they r forcing there condition.
3. I don't understand the motive behind my wife sudden change of nature ?
4. From nov 2016 onwards , she and her whole family totally boycott us..,they are not eager to keep any kind of contact with us.??

We are very simple in nature ,, after reading so much of divorce case ,online ,we r not able to understand why her family and herself behaving like this ?? Pls guide . Noted that there (my wife) family claming that there are very educated and respected in society.