Because nicholas pass out, zenon tried to find a new partner which i guess is also a rank C to be nicolas's substitute or back up so that he won't pass out anymore, and it's just zenon being concerned to nicolas's body but would cause a misunderstanding, where nicolas's would think that zenon doesn't want him anymore.
I think i could guess what would happen next.
Because nicholas pass out, zenon tried to find a new partner which i guess is also a rank C to be nicolas's
substitute or back up so that he won't pass out anymore, and it's just zenon being concerned to nicolas's body but would cause a misunderstanding, where nicolas's would think that zenon doesn't want him anymore.