I Know A Girl She Is Five Year Younger Than

I know a girl she is five year younger than me and II've feelings for her and I'm very serious about it but the ponit is I dont know whether she likes me or not in that sense.
But the point is she tells me everything, each and everything related to her, her siblings and her family. Once I didn't speak to her well, acted a bit sad and frustrated, and she said her whole day was bad she acted rudely to her sister, friends , acted rudely at school and didn't eat.
So does she has feelings for me too???