I wouldn't do anything; I would just delete, unread, anything from her or have a friend/someone who isn't as attached with her screen my e-mail from her; I'd change my primary e-mail address and not tell her so eventully all her e-mail goes to the old address I didn't check very often. But I wouldn't let her hurt or upset me. I just wouldn't give her any response at all until her messages change in some way. Until then she'd be junk/spam mail from someone with her name.