The commentary on Kawashima's brashness is gold. Sure, the MC doesn't really need those things, but the thoughts still convey a desire for them, anyway, in a world utterly devoid of such decorum between two perverts of opposite gender. The realization that sometimes we desire some decent presentation, instead of the equivalent of Margaret Cho walking up to you at a bar and screaming "STICK IT IN!" (one of her stand-up bits... at least, I think it was her?).
Also, yeah, the stuff about intent behind acts- utterly emotionless sex, even from someone obsessed by it, is still kinda meh compared to when both desire each other. To be fair, I don't think I've had the former before, so I can't judge... I just know when both care about each other and want to please each other, it's quite nice. And I wouldn't mind finding someone to do that with again.