Should i go ahead and file a Complaint or trust my husband.

Hi, I was in USA since last 1.5 Years. Recently was on tour to india to attend a maternal side family function. My husband Joined me in a months time and we left for USA. within 4 days of stay in USA i came to know one of our female friend in society is involved with my husband. She is a divorcee and stays all alone. She used to keep one of her keys in my Apartment. My husband visited her house after office hours and for consecutive days without my knowledge. I caught my husband at her apartment. Still they are denying the fact they are in a relationship. Since fights were getting out of control he continuously physically abused me.He broke my phone so i cnnot call 911. Also he immediatley booked my tickets to INDIA and said he will explain me things once he is back . its been almost half a month and as i am asking him about the update he has blocked me from all the contact list and not ready to answer me about his return. Should i wait for him to come back or immediately file a complain. I didnt wanted to darg this to court , but it seems he and my inlaws have planned a legal action and purposely delaying things What should i do?