Alaia, one of the first things I did when I left my AH was protect myself against any and all things that my AH could do. I've learned the hard way - never be surprised about what an addict will do.
I started with a list of everything that involved money or credit and then had a new card issued to me. I changed access/pin numbers. Fortunately we had separate banking accounts and no joint credit cards.
I changed my password on my email account so he couldn't access those
I forwarded my mail to a post office box for the first few months
My new phone number is not in my married name and it's unlisted, voice mail has a totally different access code then I have ever used before
I told my friends not to give him any information on me or my whereabouts
I discussed my situation with my employer and asked that no calls from him be passed thru to me
I live out in the middle of nowhere but I did talk to my neighbors about my situation and asked them if they ever saw anyone on my property to call the police immediately
I installed a security system in my house with a camera
I filed for divorce, now just have to wait until the waiting period is over
In short I believe I've done everything to protect myself. If he ever did anything that could cause me harm, I'd be on the phone to the police and anyone else who could help.
Hope that helps, K.