Legal and personal issue with violent girl
I've never had to go on a site like this before and I've never had to deal with what I saw last night. I've been seeing a girl on and off for the last year. We've broken up repeatedly - I've ended it each time - due to her possessiveness and strange behavior (ie going through my computer and emails, and generally strange episodes that would take too long to divulge here). Last night she came over while I was in bed - we had been "taking a break" from seeing each other yet again - and lost it. She threw my computer across the room, attacked me, trashed the room in whatever way she could... all the hallmarks of a psychotic girlfriend. When I went to call the police she broke my cell phone in half (it's a flip-open phone) and began destroying anything she had ever given me. Finally I got her to leave.
Here's my question: I filed a police report for the property damage and battery. I'm scratched and bruised to all hell but the police didn't take the matter incredibly seriously because I'm a guy I think. I need a restraining order or something to prevent further episodes but am completely unfamiliar with the process. Also I'm afraid that if she even has one bruise on her - I had to restrain her repeatedly - that I'll end up in jail. We also work together (but rarely see each other - it's a large place) and she could easily poison what is a new job for me. I really don't know what to do. This isn't supposed to happen to guys and taking further legal steps is embarrassing but I know it needs done. Any advice on how to proceed would be much appreciated.