Iam married for 3 months now, after marriage registration I observed there was marked change in his

Iam married for 3 months now, after marriage registration I observed there was marked change in his behavior, he was verbally abusive, insulting making me question my self worth ,trying to take hold of finances, no care and affection, doesn't even touch me. Due to govt job, we are living in seperate places, he never came to the place where I work at least once after our marriage. He never tries to spend alone time with me. He tries to sleep to the other end of bed,when confronted gives petty reasons like snoring and blames me, quarrels with me for nothing .ext morning in front of everyone he acts normally as if nothing happened. I feel that either he could be impotent or gay. His family also supports his behavior. This has left me devastated and mentally disturbed.i see no hope in continuing in a person with narcissistic personality disorder , so I would like to go for seperation. Kindly give advise which ground should I go about in my case.