I Liked The Wrong Student Too Much

I liked Lily too much. She was always the one who would stay after class to ask questions, sit quietly during discussions but always had something insightful to add. I tried not to show it, but I could see her more than just a student sometimes. Her smile, the way she listened with such intensity... It's embarrassing because I know it’s wrong. I'm her teacher, and this isn't supposed to be okay in any world. But there were times when I'd catch myself daydreaming about what kind of conversation we might have if only we weren't teacher and student. Now every time she walks into my class, a knot forms in my stomach. How could I feel this way? Why did it happen? It's just one of those things you can't control.