Don’t confront her. Don’t give her any of your energy. She’s needy for male attention, and she’s looking to lots of men to get it. Your boyfriend is just a drop in her bucket. If you don’t give her any credence, I think that eventually he won’t, either.
As for his accepting her e-mails and befriending her, think about how you’d deal with a friend of his that you didn’t like, who was male. You’d probably mention it, but not make it a big deal. Ultimately, it’s his decision who he befriends, but if your relationship with him is “bulletproof” then she won’t be able to hurt it.
I hope that helps. Let me know how things go. And join me on Facebook at his link: [url]

