"Remember before when I was talking about smelly garbage standing around being useless? That was a metaphor. I was actually talking about you. And I'm sorry. You didn't react at the time so I was worried it sailed right over your head. That's why I had to call you garbage a second time just now." GlaDOS said.
Chell knew that all GlaDOS needed was one reaction, just a simple twitch of her eyebrows would give GlaDOS all the satisfaction she needed. So, she poked and prodded at Chell, trying to get her to break. But, Chell wouldn't dare. Her situation didn't deserve a single response. Chell was perfectly capable of talking and emotions, but she wouldn't.
But, Chell had reached her breaking point. She kept her face a stone. A mask, until she walked into the elevator and the doors swished shut. The one place she was really alone.
And then her mask cracked and broke. She sobbed, grabbing the railing, and sunk to the floor, her Portal gun, clinking against the metal.
Exile. It takes your mind... again.
She couldn't do it. She was going to be trapped here, forever. She was going to die here. Testing.
Chell clawed at her hair. "Why?" she whispered, her voice raspy and strange. She hadn't talked in years. Her voice was foreign to even her.
She screamed it, her voice cracking, "WHY?"
Vilify... don't even try.
How could she hold on to sanity? How could she try? Solving tests wasn't the problem. It never was. It was always how many tests. GlaDOS could create unlimited amounts of tests. She'd be doing this forever. To further science.
In a second, she had wiped her eyes, wiped her nose, and picked up her Portal gun.
Her pity party was over. She just had to continue testing.
"Did you know people with guilty consciences are more easily startled by loud noise?"