You once again went to the school library to have a quiet study hall.

Amy was looking at you the whole time, but as soon as you looked at her she blushed and looked away.

She said shyly and quietly "I'm sorry, I didn't want to disturb you. I was just... looking at some books"

She's for sure into you, but she's twice your age. She's around 35, a mature woman, even though she looks 18.