Man, this manga is so frequently casually sexist in really weird ways.
Like, this chapter wasn't particularly offensive on that front, but the implication that only women would pick up on more subtle social cues, as if it were a hard fact you could base deductions around, instead of a statistical tendency? I'm not sure this one is harmful, it's just a really weird jump in logic that makes me wonder what the hell is going on in the author's head.