Well, you probably should have started by just being upfront with her and telling her that you like her. Doing the whole secret admirer thing could potentially blow up in your face. If she put it out on fb, what's to say that three other dudes haven't already taken claim for your work?
I would take claim for it though. I'm sure she might be a little weirded out by you not being up front and just telling her, but who knows. Best case it works out, worst case, you have an answer and can move on.
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