Ex girlfriend threatening to file a case

In 2021 I had fallen in love with a married women with a child everything was going good we used to go out have sex after 8 months due to some fight and not talking to her she had taken many tablets and commitment suicide, after recovering from that I made her promise not to do it again. I was going through a rough time and she helped me with some money .Then again after 2 months I had fallen sick and was unable to talk to anyone and she started calling me back to back and then I scolded her and told not to call me or else I will block her and won't talk to her. Listening to that she again are tablets and commitment suicide after that it became a huge scene her husband and family got to know about us and then her husband divorced her and family left her and I didn't want to keep any contact with her because she was very toxic. She used to call me again and again after that but I had blocked her. Now after 3 years she has started calling me back to back and threatening me that she will come to my house or go to the police station and register a case against me for what reason I don't know. Please help me getting out this mess as she has friends helping her and also cops