@Elaine-And-Cort0 I don't understand- you seem to have 2 listings for the same place, one new and one with 36 reviews that is marked "Superhost" That is the co-host's listing? .
You seem to be under the impression that Superhost status is something hugely important, which it isn't. Just concentrate on good service and providing a clean and comfortable listing and you will get Superhost eventually.
Focusing on attaining or maintaining that status leads hosts to bend over backwards trying to please never-satisfied guests, overlooking unacceptable behavior, etc, in terror of a bad review. Which is exactly the point of it- it's a behavior modification tactic.
All the ratings and reviews will be with the account that the listing is under, which is yours. Who messages the guests is immaterial.
You might want to edit your description- you haven't used "The space" section correctly. That is where you are meant to describe the house itself, the rooms, the layout, the sleeping places, the yard, patios, etc.