Chidi: Look, Simone is really perceptive. I might slip up and reveal something. Look, this isn't just about me feeling awkward around my ex. It's more about, if I am awkward around my ex, everyone gets tortured forever.
Michael: No, there has to be another way.
Eleanor: Oh, I've got it. Just remove Simone from Chidi's memory and keep everything else. Boom.
Michael: It doesn't work that way. You all spent a lot of time together, so his memories of you and her are all swirled together. But let's keep thinking.
Chidi: Guys, I've thought about this from every angle. If we don't wipe my memory, I will, one way or the other, ruin the experiment. You know I'm right.
Eleanor: No. No, man. It can't be, because if we erase your memory all the way back to before you met Simone, that includes Australia and the study and the Soul Squad and everything. That would be erasing...
Chidi: Us. I know.