I sympathize with you! I tend to over-analyze and take things very personally, also. :P
I would not worry about it, though. She may have thought the same thing, about it being awkward around the neighborhood and at the bus stop if things didn't work out. More than likely, she just thought you were full. Maybe the new daycare is close to her work? Or to some other important place, like gramma and grampas? There are a million maybes!!
Either way; oh well!