I knew she was gonna get hit on by some pickup creeps after getting new clothes. Man, that's a romcom cliche I can do without. Himeko was wrong, they should've just met in front of the house so Hayato gets to be the first guy to see her in that dress.
That said, this totally-not-a-first-date is going great. They could probably shop clothes for him too, and have her choose for him.