we would be the only passengers . `` i am on duty , so , i ca n't leave my post . for those answers you 're going to have to ask her . '' `` i do n't want you to think i 'm choosing to leave you . i put my hand on top of hers over my heart . you know now , for a fact , that i do n't want you dead . the first thought that came to mind at her question was a hard blow that knocked the wind right out of me . 