Norma: "And guilt for the charge of being raped. No dice."
As Norman sneaks some desk candy, to Rebecca's sweet, encouraging smile, Norma makes a good point that carpet fibers don't actually prove anything considering he owned the motel for 40 years, but then demands to run her own DNA test on the fibers. It almost makes Rebecca laugh but -- as we'll see later -- also makes her think.
Norma: "Rebecca. I'm not going to walk into a court of law and say that I did it in self-defense just to make your job easier. I didn't do it!"
She stalks out, Norman making apologies all the way out.
ON THE DRIVE HOME
Norman's point -- once she glares him into speaking it -- is that she is not only acting crazy erratic, but also that she's lying about something she doesn't need to lie about. But all she sees is that belt under the bed, when he speaks: He doesn't get to have an opinion about this, whatever he got up to with whatever girl, because as much as he has churned the whole nightmarish experience into one big murderous sex anticathexis free-for-all* in his head, you can't forget she's doing the same thing:
The belt thing added Norman (and Shelby, although with Shelby she can discharge it in other ways) to the factors in the ongoing monster that's chasing her now. Norman becomes the observer, the audience: Without him watching, the only man involved would have stayed Keith, who is dead.
*(I didn't notice, but an eagle-eyed poster did, that in his blackout S&M fantasy with Miss Watson, at one point she gets turned over on her face, bound -- just like Norma -- and then turns into Norma, for a moment. I mean, it's there to be assumed, but the fact is there's a frame where it's true.)
I point this out, first and foremost, because I need you to think I'm a smartypants, but mostly because it still stings to see people calling that first night "unearned" or "exploitative," when in fact it's still the prime mover for everything that is going on: Everybody deals with their violation in different ways, and this is still -- halfway through the season -- about Norma doing just that. I've been putting emphasis on the woman world/man world part because that's the part that affects most of her actions and the rest of the characters, but when we talk about Keith Summers or the murder we are only ever talking about this: Him coming back from the grave to get his revenge, by winning. Putting that violation back on top, after she risked her soul to erase it.