I rent a closed office space but immediately outside my door sits a girl who thought it was cool to play music while she worked. I thought it was best to nip this behaviour in the bud and asked her to turn it down.

This was 6 months ago and she hasn't spoken to me since. I sometimes say hello and goodbye but she just blanks me.

Assholes will always find a way to be an asshole no matter what you do.