Why do these things happen

There are 2 guys that ive talked with and one had talked me into sending a picture of my pussy. Somehow he screenshotted it off of snapchat without it notifying me. And then when they both started treating me bad i told them i dont wanna talk anymore they started teasing me telling me i fuck my horses because im an eventer and my name is annabel i go by bella but they call me Analbel and they started showing my picture to everyone and when i told them to please delete the picture and stop showing people they said "at least i dont have a sloppy pussy" and "your pussy needs to grow back inside you" i don't understand nothing hangs out at all. And when i was walking with my friend. One of the boys drove up and acted like he was going to hit me with his car. He missed bc i moved in time but he had no signs of turning or stopping. Why are they doing this someone please give me a reason.