Yikes! I'm really sorry you're going through that. My suggestion would be to first contact the police, and second speak to a MOD who can help you further. Just make sure you're safe! Thats the #1 priority. Hope all works out for you!
ice had this happen myself as well...it worked for me to change my password, just by clicking theb"forgot password" spot, and then I was able to regain access to my account. If that doesn't work, I'd suggest speaking to a MOD for more indepth assista...
I totally understand the frustration, but once you get the hang of this system, you'll find it really great. It's kind of nice to not have to wait forever to talk to someone on the phone about an issue that only takes a second to rectify.