What does this mean I’m just curious?

Yesterday me and my girlfriend went to a goods store and this one thing piqued my curiosity she was at the tool section and she was looking at some screwdrivers while touching them. When I approached her She said I’m really into tools lately and I gave her a look and she said not for that reason no, I’m not that crazy. It has left me intrigued, curious even what did she mean to tell me about tools?
What does this mean I’m just curious?
What does this mean I’m just curious?
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