Adults: Have I handled this wrong or am I clear in what I'm thinking? (It's long, 511 words.)?

I think shs is not interested in you at the moment. May be her priorities are set elsewhere. But she is definately not much into you at this point as if she would have even thought you as a friend or more, she would have told you that she is busy and given a reason. The way she is ignoring you, she is trying to say that she is not interested at all. If I were you, would just send her 1 last text, apologising for being bit impatient and tell her that you will not bother her anymore, however, if she wants, you will always be around. Let her come back to you.