Hi there,

The best thing to do is to delete all contact with this person and block her from all your social media. Focus on your own online spaces, keep them free from this person and move on. Life is too short to waste any energy on negative things, focus on the most positive thing, you.

As far as I know, publishing someones personal details is not legal and most sites will remove this on request. There is not much you can do about lies and mis-information apart from keeping your own online content active and positive. This at least will allow you to express yourself online and also push down any negative or harmful content on search engines. I think you can learn more about this in the Help Centre under Reputation management, here is a link to a blog post that you may find interesting -
www.cybersmile.org/blog/how-i-survived-cyberbullying-like-a-boss

Hiya,
I've had experience with people cyber bullying me; they made a really cruel meme of me and put it online for all my peers to see. This situation you have isn't something you deserve; fallouts sometimes are natural but that gives no one the right to take their own issues out on you. If you haven't done so already I would highly recommend reporting these people to the local authority or the police. Cyber bullying and harassment is as grave as bullying and harassment in person. I really hope the best for you as they have problems not you and I can so relate :) I hope this helped!