[BatLobsterRises]

I think the point of him asking was that logically she should have been sentenced and walking the ice along with Gordon and his men. They were all captured at the same time, yet Bane kept her aside. I think his hope was that they'd all be walking the ice and he would've saved Tate along with Gordon and the cops, but that doesn't pan out so he inquires about her whereabouts.

To me the most awkward exposition in the trilogy is when Batman and Gordon explain blow for blow what is happening in the Narrows during the climax of BB.