well, it sounds like she's started to find it a bit intense and is trying to back off. It doesn't mean she has used or abused you, just that she may be having second thoughts. This happens sometimes. I can understand your feeling shattered; but there's not a lot you can do about it. Try to back off a bit yoruself - leave her in peace for a week, then approach her, not too enthusiastically, asking if she'd like to meet for coffee or something... if she doesn't answer, well, that's probably it. Tough, I know, but people are always entitled to change their minds.