The Courtesy Call

"We both said a lot of things that you're going to regret."
"But I think we can put our differences behind us."
"For science."
"You monster."

GLaDOS hasn't forgotten about you. In fact, she can still remember her blazing demise.
But now she's awake again. She's ready for more revenge. She's ready for another round of science.

The tests were only the beginning.