for real?
only thing i learned from going on was that glados was corrupt and had a morality core
Again, you only played the game, didn't look around much, and are then assuming. The scribblings were made by the only remaining scientist, Doug Rattmann. He was a schizophrenic who, after surviving the Neutrotoxin attack, was saving his last two pills for the day he escaped. He moved Chell from the back of the testing list to the front after finding she was listed negatively against the facility. He followed her along her tests, escaping at the same time of GLaDOS' destruction. He witnessed the Party Escort Bot dragging her back in, selflessly following them back inside the facility to save her. He was injured by turrets upon entering, still managing to save her and enter a Relaxation Bed.
Another summery, missing lots of information.