[It does seem like Oz understands what Ciel's getting at, at least, and he won't ask for further explanation - which probably isn't surprising to Ciel by now. It seems that's just the way Oz operates.

He wants to say something like "she was a good person" or thank her for being there to teach him how to make oatmeal, but honestly, everything comes up sounding like platitudes in his mind.]

...I'm sorry. I don't think that things are going to get any easier from this point on. [Not that they had been easy at the start, but he knows that this won't be the hardest hit they take.] But if there's anything that I can do, let me know, all right?

[Not much beyond that can really be offered. He can only help bury the dead and try to keep what he can safe from harm.]