I got a message from my ex I dated 9 years ago (I was 12). I gave him a ride a year ago bc he was…

I got a message from my ex I dated 9 years ago (I was 12). I gave him a ride a year ago bc he was holding up a homeless sign. when he jumped in he said his gf kicked him out of the house that morning. well, when I opened the message it was from her saying I need to stay away from him that she knows we slept together (it's false) and she was going to find out who my bf was and go after him! I hate ppl