Is it normal that my ex falsely accused me of rape because i dumped her?

This happened when I was 14, I'm now 23. I had just broken-up with my girlfriend at the time, because she was being polygamous, which I could not accept, and just an abusive bully to me in general. Anyways, she became so upset by this that she literally decided to take revenge on me by filing a report against me, where she fabricated a story where I dragged her into the woods close to where I live and violently raped her there. Seriously, accusing someone innocent of this fucked-up crime is deplorable! Anyways, they didn't even test this case in court since I wasn't even old enough to be punished by law. Still, this lying psychopath's accusations could have ruined my life.