MacAttack did she ever come back to you?
I just recently got out of a relationship and I know if you do not completely cut it off, even for a few weeks, you can never really take a step back and see what you have and what is best for YOU. Funny thing is your situation was exactly like mind. I knew what I wanted (her) and she wasn't sure if wanted me the same way. Relationships can get rough when one person is more involved or sees it as a higher priority than the other. But through good communication and honesty you can usually get through it (for better or worse).
As for your situation, go ahead and e-mail her. See how she is doing and show that you are interested in her life and take on things. Don't go overboard with "take me back", let her comvince herself that she wants you and then and only then will it last...