Oh geez, I'm sorry. And now she won't leave you alone? Yikes.

Can you screen your calls? Is she calling a landline, or a cell phone? I take most calls on my landline, but I have an answering machine hooked up - so I make people leave a message before I pick up. Friends get used to it, not a big deal, but it lets me avoid people I'd rather not talk to (very effectively!).

If it's a cell, can you program her number to go straight to voicemail?

And, regarding the letters... I once read an author who talked about getting all kinds of horrible threats in the mail. She dealt with it by having her partner open/read/screen the letters for her, to help minimize her anxiety. That way, *someone* can read them - and you know that if she ever *does* change/come around/become a decent human - someone will be aware and can then give you THAT letter. And... in the interim, they can screen out all the crappy hateful letters and shred them without you having to read through them.

Again, I'm so sorry you're going through this though... good luck dealing with her!