(because why would a machine need to complain about its fuel? why should a machine care about it?)
and it's no coincidence that when leia snaps at him in the upcoming couple of chapters and twists the knife, then realizes how she fucked up by telling him that he is just a machine...
...she comes with food
to apologise, she comes with his favourite meal and notes how much she fucked up, but brings that as a peace offering