Everyone is giving excellent advice. The only thing i have to say is that you need to be patient. It goes along with what everyone was saying about being insecure. Okay so you asked her out over her away message huge mistake, but it is able to be corrected. However what is not correctable is the fact that you text messaged her phone. Basically this fucked you intirely, because even if she would have said yes she would have the knowledge that you are really digging her way too much. Which her having that knowledge is possibly the worst thing that she could have because she knows that you will be easy to manipulate simply because you could not contain your self to just waiting to find out her answer. My suggestion is that you should kind of be leary if she all of the sudden decides to go out with you.

I just put this in here due to the fact that from the way you are describing her that she is manipulative due to the fact that according to your friend she would have said of course i would a week ago but know it is not right now.

another thing that strikes me as a problem is this statement that you posted.

This strikes me as a problem because it seems to me that you could be known by girls to be easily manipulated. I dont know if this is the case but just ask your self how your other relation ships ended.