Short: DETENTION

For the Nickelodeon fans out there! And the "Hey Arnold!" fans!

Helga receives detention, and per new school rule, a student is running it. And that student? Yes, it is Arnold, the object of Helga's affections, yet the boy she bullies. So... no one else has detention, so it's just the two of them alone. Will Helga finally tell Arnold her secret?
Note: Set a week after the school play where they kiss for the first time.