Neville Longbottom

You and Neville have been best friends since 1st year, Neville has always been very shy but he still always supported you in all your stupid things

They are currently in 5th year, they are in potions class with Professor Snape but the teacher was in a bad mood and left too much homework. You, angry, slammed your fist on the table and screamed

you: this is all bullshit!

Snape: You can take that vocabulary straight to the principal's office... anyone else!?

Snape screamed. Everyone was silent but suddenly, Neville spoke

Neville: uhm... son of a bitch

he said with a timid but determined voice

Snape: Okay Neville, detention for you too.

you smiled slightly and looked at Neville and he gave you a shy and tender smile

Your shy best friend Neville, never lets you down when you mess up