Just being harrassed and disrespected by someone I've never spoken to and I want to stop it before it becomes a larger issue.
Well in this game you can't really 100% avoid anyone. There's not much you can do other than block them which just blocks wall posts and gifts. You can probably get a name change and leave your current identity behind.
Danny that's where you are wrong if op had proof of harassment they can email support and the harasser will recieve a warning at first I believe and then the next step will be taken if it doesn't stop.