EDITED TO ADD: Sorry I didn't mention this before but I had actually forgot about it since it feels like it didn't even happen!
Sorry I should have provided more background info. When they did "talk" to her before it was several times. Finally, the last time I let them tell her that I had a problem with her contacting me all the time. So she did call and appologize. Also after that, I was helping out with other departments a lot up until 1-2 months ago so she knew I wasn't always at my desk.
Now that we've been moved to a new project together it seems that she thinks just because I'm not helping the other departments anymore at this time that I have nothing better to do but respond to every single e-mail she sends. We both do our work out of this one server and have to assign ourselves what we're working on so no one else works on the same thing. I always dread it when I come in and have to assign myself work because she will see that and most likely takes that as a cue as I'm here and she can bug me. I'm pretty sure she watches the server and notices when I'm moving my work when I'm done and assigning more stuff to myself.
Seriously though, I've e-mailed co-workers knowing they are at their desks but if they don't respond right away I just assume they're busy. Anyways, she e-mailed me first thing this morning, 15mins into my shift. I'm going to try to ignore her for another full day and see how it goes. I have previously, and I guess I'm going to have to again, tell that I'm busy. Though, when I've said that in the past she always wants to demand to know what I'm busy with! As if the work that we do doesn't count?

I was also thinking of throwing in that I turned my e-mail alerts off so I don't know when I have e-mail unless I decide to check it because the alerts were distracting.

I'm not really going to turn them off because I do need to know when I get certain e-mails and unfortunately I can't just turn them off for her e-mails only. I so wish though!
So I'm going to try to handle this myself for awhile longer so I have more proof that I've tried to handle it before presenting it to my supervisor, if I feel that it has come down to that. I am also saving all her e-mails so I can show if need be, how frequently she e-mails me about non work related things.