Sounds like my ex. Wanted it over with but still wanted to be friends. First time she tried it, I told her to fucking leave cause thats not what I want.
She needs to understand its over with, thats what she wanted. She cant have everything she wants still like it was in the relationship.
Just block her AIM name, her email address, ignore her the best you can. If I can do it, you can too. I havent spoken or emailed my ex since october, and we were pretty much married. And believe me I really wanna see her, but like you, I dont wanna see or know if she is with anyone else.
Quite honestly, if you are only a month into it, its getting to get worse probably. It did for me, I was getting better for awhile, buit lately its all coming back.
But just stick to what you want, and dont compromise anymore.