Aw, mate. I'm sorry to hear that. I know how you feel though. In fact, a while ago, I was in quite a similar position to you. I went out with my friends for a drink one night and I met a girl that I really liked months ago. She moved to another store in work and I hadn't seen her in a long time. Anyway, we had a little kiss and we made plans to meet up a couple of days after that. I was so happy because I did really like the girl still. Anyway, the day of the meet, she texts me to say that she can't come because she is getting back with her ex-boyfriend. I was quite upset. You know when you get that crushing feeling in your stomach? Yeah, I got that.
So, yeah. That is really harsh man. However, there will be plenty of time to meet up with her in the future, I hope. Keep your chin up man and if you need to chat in private, hit up my PM box.
Yeah. My response to the situation is now "Boats and hos man. Boats and hos." She may take off work, just so we can hang out on Saturday. If she does, she will officially be one of my greatest friends, because no one ever takes off from work just to hang with me lol. But I hear you Dave. Emotional investments always fuck things up, because it takes a bit to move on when they say they want to go back to an ex or something.