@suize I want more chapters with those two interacting in general. It feels like Hinata is worried she's looking too strange in front of Haruto, but in fact Haruto fully accepts Hinata, not thinking anything of her grandma characteristics. Or at least that's how I'm remembering it. Too far chapters of those two having appearing together, so I could have false memories.
@KhalE Small kids logic is that they want to marry someone they really like a lot so it is not rare for them to reach the conclusion that they want to marry relatives, a teacher, school friend, pets, etc. It is just something cute kids do.