Who, exactly, is Caroline?

Caroline is the woman who was put into GLaDOS,

And the secretary of Cave Johnson.

Ready to sacrifice herself,

Oh, she paid a dear price.

Love. Her daughter, Chell.

Incredibly, she was ready to give up Chell to fulfill Cave's wish;

Not to have him run it, but to let her take care of Aperture.

Excellent character, Caroline.

Rest in Peace.

Caroline is Chell's mother.
Caroline is GLaDOS.
GLaDOS is evil.
The cake is a lie.
Lying leads to sadness,
and sadness leads to love.
Love. The life of Caroline, the woman who forgot love.