Engagement broken

Sir I got engaged with girl in last feb-2020 and marriage was schedule to take place in may but due to covid it couldn't possible,in that time when I talked to her I didn't find any attachment with girl and also there were mismatch of thoughts so I told to her in September about that but she still forced me to marry and was not able to understand that I dnt want to marry & she was keep asking me to clarify why I am doing this considering that she is not understanding any thing and she was keep saying that do u have any affair then I said yes I have a affair. She recorded these all conversations. Then marriage is cancelled from my side. Then in late december her father called my father to return and exchange all gift during engagement We returned all their gift and also wanted to compensate them with cheque but they misbehaved us and also refused to return all our gift which they had . Now from coming back to their home they keep calling us to to come there place to settle down things But seeing there behaviour we are unwilling to go there but they are keep presurring all my family members for this. Guide me what to do They are keep torturing us for month