Why did she ghost me?

BHooper
Okay so a bit of back story. A few weeks ago I saw the girl I like up at the pub and she ended up giving me a lift home. We bonded a little that night as her car broke down and I walked her to the gas station to help her out. A week or so later she messaged me to see if I was going out. I told her that I wasn't but I would be on Tuesday. I then asked her about her new job and she didn't reply to the message. I though that maybe because she was out she didn't see the message. Anyways Tuesday comes around and I message her telling her that I was going out and that she should come. The message sent and she received it but she never replied. It's been over a week and she still hasn't seen or replied to the message. Why did she go cold? Why did she seem interested and then just stop messaging me? I know for a fact that she isn't involved with anyone at the moment, so why was I ghosted?
Why did she ghost me?
Why did she ghost me?
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