My guess is she likes you enough as a friend to not want to hurt you by giving you reasons why she doesn't want to date you. In my very limited experience I don't believe I was ever given reasons. I don't see it as a good or bad thing, just a thing.
At least she's not trying to be mean or purposely act undesirable to emphasize the point.
At least she's not trying to be mean or purposely act undesirable to emphasize the point.