Mental harassment in a relationship.

I was in a love with girl from 2.6 year after the she leave me because I dnt have job I promise him and get a job with in2 mnths but when I again go to meet him she told me that "ab mai aisa nai sochte". I talk him again and again then I leave him. I cnt contact him from last 10 mnths bt this month I know that this girls was not interested because she was in physical relation with his bhai , I have all chat records that boy and that girl. Know she is married 2 mnths before . Know I just called him and msg him on Facebook give me some ans of my que no need to meet me. That they told I am going to file a case againt u. Will I file a case against him. She was also in physical relation with me before her brother and their is also case against him that a boy have done suicide because she also cheat him and case was also filed by police.so what I do..