sanada_yukimora said: Inclined to agree with this guy. She'd just say something along the lines of '...okay.'
Res ipsa loquitur. Rei is unrapable.
I have to disagree. She isn't an emotionless girl, more like a Kuudere (consul TV Tropes for more info). Depending on what version (anime, rebuild, manga) you're watching, she's character-developing steadily. She didn't betray Gendo for the lulz.