Recovery of money and denial from friend

I have lended money to one of my female friend. We are friend for more then 12 years. After receiving the money she started behaving weird but I ignored it. Then after that she started asking me money at intervals but I refused her. Last month she again asked for money and I denied for it. After denying we had conflict over chat and we decided to end the friendship. So I have asked to her return my money and we will close the topic forever. I was asking for money over chat by sending her reminder. Then one day she suddenly called me asked to meet her for which I have denied and hang the call. After that call she dropped me message that you came near my building and I have given your all the money in cash but actually I did not went their and I have not received the money. The time when she is mentioning I have visited that time I was with my mom and I have cctv recording of the same from my building cctv. Now when I am asking her for my money she is saying I have cleared your money and if I message again she will file harassment complaint again me. Kindly suggest what to do.