Claire told Clinton that she didn't think that Marten even knew it happened
But that's exactly what this sentence tells us. Clinton obviously thinks that Marten remembers the cuddles,
despite Claire's assumption he doesn't; otherwise there would be nothing to thank Marten for, because then the reason for not mentioning them would
not be chivalry, but simply lack of knowledge.
To reword this: By thanking Marten, Clinton implies that Marten committed an act that is worthy of thanks, which wouldn't be the case in a universe where Marten doesn't remember the night.
Either that or Clinton didn't think that far.
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Where I am from, I think the word "bro" was popularized by Barney Stinson.
How would he know?
Fine, maybe "know" was the wrong word to use. He strongly assumes.
However, Marten's reaction will immediately confirm it for him. Maybe that's the plan.
I don't think he would carry out such a plan if that includes embarrassing his sister like this.
*re-reads*
As I was saying, he
would totally carry out such a plan if that includes embarrassing his sister like this.