[It does make sense, which is the entire problem. Sai can't find anything illogical about that reasoning, nothing that would point to sentiment rather than efficiency, which leaves him back at square one.]
did the three of you return to your residences together, or did you part ways after escaping the mall?
[A second attempt. He is going somewhere with this, though it might not be immediately obvious where. It might even seem like he's prying, which would be especially strange; in the time Sai has known Giorno, he has never done such a thing. It's always been an exchange of sorts--an ability for an ability, that first time, information for information, assistance for assistance.]
no subject
did the three of you return to your residences together, or did you part ways after escaping the mall?
[A second attempt. He is going somewhere with this, though it might not be immediately obvious where. It might even seem like he's prying, which would be especially strange; in the time Sai has known Giorno, he has never done such a thing. It's always been an exchange of sorts--an ability for an ability, that first time, information for information, assistance for assistance.]