"I have interests but I don't relate to them in that way, no."

"Well, unlucky for you I suppose."

"I am content to be as I am."

"I think I'd rather die than not be interested in the weather."

"It does seem to be a dramatically defining feature of your character."

"Yes, and I'm happy about that....So, I think particular sorts of clouds are needed to get the extra bands beneath rainbows, but I don't have enough examples to figure out which, it's very frustrating."

"Well, which ones do you have positive examples of?"

Sophie can describe the three examples that she's heard of or seen - they definitely seem unusual, but finding a pattern is hard.

Haru can be a rubber duck for weather mysteries till it's time to step back onto the dance floor.

Sure, fine. Dancing. She can go to the man who wants her dowry enough to have signed her dance card.

Haru can dance with whoever the fuck this is and produce pleasantries as needed and then next he joins hands with Lucette.

She is not naturally graceful, but she's empowered and has studied the relevant dances exhaustively, which more than makes up for her lack of talent.

"How has this evening fared for you thus far?" Lucette drops the 'Mr. Swan.' she would normally add, conscious of Haru objecting to that formality. 

"Roughly as I expected."

"Well, I spied the Duchess Metcalfe's talkative cousin dancing with Lord Metcalfe when he caught sight of you and Miss Anderson and the expressions on both their faces make me optimistic as to the success of that particular manuever. ... which I admit I feel a tad guilty for but needs must."

"You'll have to go over this with me later when there can be diagrams to accompany the explanation."

"I'd be delighted."

Dance dance. "I have the other two dances you suggested too."

"You are really quite skilled at charming women for one so new to England's social scene."

"I think my literary background is helping."

"Oh?"

"Later."

"Ah, of course."

Lucette can't help but smile while dancing with Haru, though she keeps it to an appropriate amount and will be sure do so with other men later in the evening so she does not seem to be favoring him and instead will be perceived as being in a generally cheerful mood.

Haru is maintaining a generally even-keeled demeanor and may actually have smiled more at Sophia.

Lucette has no feelings about this! Why would she!

And at the end of the song he bows and moves on to the next girl.