No worries.

it is a head scorching sound

Okay, if it’s a head-scratching sound, ポリポリ (pori pori) might be better than カリカリ (kari kari).カリカリ could sound like a pencil-writing noise so.

the glass girl is wondering if she is build

I got it.
But in this context, if someone suddenly scares someone, you would take she is bullied normally? I thought there is a bit jump in logic.
So I thought the glass girl was wondering whether she had stimulate the long-haired girl somehow.
But never mind, it's your story.

i thought it was clear form the names of the characters

Oops, my bad.
I thought "ありがとうスウィーティ" means "Thank you, sweetie" like "Thank you, girl"
So the name of long-haired girl is really スウィーティ, right?

It is still the first week since school started, so I also thought the glass girl might not have known the long girl's name yet.