Update:
I am not motivated to ask her out anymore.
I asked her out again but she said she was busy. I am taking that as a sign that she is not interested anymore.
I am going to try to move on.

I feel like crap right now. Only time will heal.

I am really sorry about that I just can't think straight. I really feel depressed.
:(

Thank you very much ladies and guys. I feel lot more comfortable sharing my feelings with her now. I will see her tomorrow so I will definitely keep you in the loop. Hopefully I can still make this work.

Thanks for the kind words and being nice.
How can i show her that I care about her, I need to fix this. I really like her. :(

I know I messed up that is why I asked her out the second time to make things straight.
But girls play games all the time, NO? you guys make us chase you and play hard to get. I thought it was for the thrill of it.

Hi,

I really need help with this from the girls. Can you please tell me what I did wrong and how I can make it better if I still have a chance. I am usually somewhat of a confident guy but when I "really like" a girl, I get nervous and I tend to make mistakes. I have no trouble taking to girls who I am not attracted to that way.
I am not sure if she thinks of me as friend or more?
Anyways, here is the story.

There is a girl that I really like. She is just really special and I am really attracted to her.
It seemed like she liked me too. We work together so we would always talk and "hang out" at work. We shared lots of personal stories and it seems like both of us enjoy our time together. Anyways, she first ask me out to go play pool, but i didn't really tell her no or yes, like I said i get nervous and make stupid mistakes with girls I really like. Anyways, so the pool thing never happened even though she did bring it up again one more time. Let me describe her so you guys know what type of girl she is. She is very confident but quiet, barely talks to anyone or makes eye contact. She comes out as a shy person.

We were together one day and finally, I got the courage to ask her out that night. She said yes, but I am not sure she said yes just to be nice or she really wanted to go out. Anyways, she did give me her phone number before I forgot to add it and I was also trying to play hard to get for some reason. So i never bothered adding it to my phone book. When I asked her out that day, I told her we can hangout after work but I didn't really tell her where we would go or what time. Anyways, she left work without mentioning about the plans for that night. Which I took it as a sign that she was not interested. Plus I did not have her # cause I never added to my phone book, so i couldn't follow up and call her but she did have my #. Since we were both lost without communication, that night did not happen and so I decided to go out with guy friend. And that night I bumped into her with her friend. We were both surprised we were both there and had a small conversation. We didn't hangout cause I had work early next morning so I left. Next, morning she contacted me and told me that "it was funny bumping into you last night but we were supposed to go out, remember?" I asked her with what went wrong, and she told me she doesn't know was happened but was expecting a call from me. And I told her the truth that I lost her #.

Round 2:
I got the courage to ask her out again. This time I had somewhat of a trouble asking her out but she kinda helped me and made a joke about if I am taking her out for a dinner, which helped. Again she said yes. But I am not sure if she said yes just to be nice and because we work together. Anyways, this time i did have her #. SO I called her and set up a time to pick her up from her house which she agreed too. But she told me that she is currently busy with something but she would be free in the evening which I was okay with because I wanted to take her out in the evening anyways. So long story short, she contacted me early evening and told me that we would have to do this some other day and that she is running late and she has a headache. So the night never happened. Did she just turned me down??

I am not sure if I somehow told her that she is not important when she is. Maybe she thought I am not interested in her? Maybe she really thinks of me as a friend or is she playing hard to get? If a girl is interested in a guy wouldn't she meet him halfway or does the guy have to go all the way? This are all the question going through my mind and it is driving me crazy. I need help, I need a female person to tell me what is going on.

Tell me how I should do things differently in the future if i still have a chance with her.

Thanks you for taking the time to read this whole thing and help me out.