What do I do? Please help.?

Hi nice guy, do you realise what she is doing is acting domestic violence? Emotional violence and threats are still considered domestic violence, you don't have to be physically bashing someone for it to qualify as that. If you are as unhappy as you seem to be then perhaps you should break it off with her. I know you are worried about your possessions and yourself being threatened but try and break it off with her away from your environment i a neutral zone. If she then turns up at your place threatening you (or her father does), then simply call the police. Domestic violence shouldn't be tolerated in any situation.