How'd she even get past the first game. As soon as she picks up the portal gun, GlaDOS would have to open the doors in each level just so she can move on to the next one, because she's going to be spending a lot of time playing with the Portal Gun none stop. She would have to lure her with the promise of cake all the way.
Oh. It's you. It's been a long time. How have you been? I've been really busy being dead. You know, after you MURDERED ME? Okay, look. We both pulled a lot of pranks that you're going to regret. But I think we can put our differences behind us. For cupcakes. You monster.
"I will say, though, that since you went to all the trouble of waking me up, you must really, really love to test." "Ooh, a test! Is it on parties? 'Cause I know SOOOO much about parties!" "...you seem to be attempting to defeat my logic-bearing capacity."