Who's Billy?

Her words said one thing, but her tone said another. Now I am left with the daunting task of determining what she meant.

She was dressed for snow and carried a newspaper. I was waiting for the bus. It was windy and it seemed as if rain was only seconds away...it was. She stopped near me and turned. I looked at her. She mumbled something. I asked her to repeat herself. She said, "You let Billy push you to do things." I said, "Uh...yea." She walked away.

Her words sounded a warning as if she knew what my problem was, but her tone seemed to imply that letting Billy push me to do things was really the solution. Should I let Billy push me or not?

Her statement begs another question: who's Billy?