I was in your shoes not long ago at all. Im working next to the girl I wanted and thought about constantly as I type this. I was like you, I consulted with my buddies on KORGSTUDIOS.com and 95% of the people said "DUMP HER"
or forget about the self centered twit.
Lesson A: Dont date co workers, EVER.

It took about a month, during this month I completely quit calling her, emailing her and speaking to her for the most part. "hi, whats up" was the extent of our conversations. In a short time, I saw how miserable this girl had made me. Most people know how you are feeling, and despite my metalhead mentality, Im pretty much a tender hearted kind of guy.

But Im SO GLAD that we are no more, because when you think of all the time she is on your mind, all the wasted hours you spend thinking about her when you could be doing ANYTHING else, its just retarded! And there are other fish... and lots of them! And lots of them actually ARE appreciative of guys like you.