Most Helpful Girl
Sometimes people aren't ready to confront what they are feeling inside. And are just unable to give us that proper closure. Maybe you both need some time to sort it. Give it time to cool down and then come back to it to seek your closure. If she will not give you this much at the very least, she's not worth your time any longer and I suggest seeking that closure within your own heart.
Most Helpful Guy
I always go by this one rule; never date someone you work with. It's just a bad situation to get yourself into. It don't seem right for her to be gone for a week and decide to break up. Like she found someone else and decided to give it a try. I know it's hard, but you have to put things behind and really decide to move on and treat her just like anybody else you work with - a co worker.