If you really aren't feeling comfortable with him, thats a sign that your not ready for a relationship yet and you should tell him that. There was this guy named Caled. In 5th grade, he asked me out. I said no, because my parents didn't let me date so young. He looked glum but when we got to 6th grade he was laughing with a girl happily down the hall. So everything works out fine, they find their perfect match, so no need to fret.