LL, IS RIGHT! My W would voluntarily remind me that she no longer wanted to be my W for least 2-3 times a week in a four month stretch. Tough keeping a strong PMA when they continue offer their opinion even when you don't ask, but then she suddenly changed her mind.
Remember how I was saying its a battle of wills. I believe she is trying more to convince herself of what she is telling you, but something deep down inside is not allowing her to be convinced and she hasn't discovered why yet, so when the time comes she tells you its over and you believe it then she will be able convince herself it is over.
Everytime, my W told me that it was over, I would politely reply, "I'm sorry, but I don't believe that." and drop it or walk away. When she did change her mind, she thanked me for always believing and for never giving up.
Steph, the way she wants to continue close contact with you, over time I don't think she will ever convince herself it is truely over and then will start doubting why she really thought that.
Hang in there, Steph. It will take as long as it takes and if you give her every oppurtunity to turn herself around eventually she will get there.