Just something to think about. I gave my husband pictures of all of us together when he was packing up to leave because I wanted him to have them to look at and not to forget us. Is it possible that she is feeling the effects of what is going on and your change of heart and doesn't want you to forget about her and how happy you used to be together? Even though she is the one leaving?
"It is excruciating pain. It is the pain of separation, the pain of loss, the pain of dreams and expectations unrealized. It is the loss and death of a mirage."