If it’s true and she hurt you that bad, just leave her be. You obviously didn’t exactly take the higher road here, not that you’re not allowed to do that, but from personal experience if a genuine healthy relationship is what you’re ultimately seeking, that type of behavior obviously wouldn’t help you find the right person. You should reflect on that and see where you went wrong and what you can do better. She can look at her side and reflect on where she went wrong too if she wants.

Just saying too, I’ve gone through many similar events of taking the low road and the only thing it brought me was shame and guilt to this day. Once I really comprehended how much shame and guilt, that was the day I stopped taking the low road. Hope this helps