[header] How to ignore a girl who hates your guts [title] Unfriend her on facebook. [step] Cyberbullying is just as hurtful and harmful as real life bullying. People can easily use your social media profile as a place to spread rumors and share unwanted information. 
Unfriending the girl on facebook will stop her from blowing up your page with potentially rude comments or photos. Plus, deleting her from your profile will show her that you're not interested in further communication.