[The content of the conversation rouses her enough to sleepily open her eyes and look for him.]
I don't know.
[Is it okay to leave it unsaid? She looks to him for an answer.]
If I disappear, it's Fujimoto-san who will be the saddest. [Her eyes close again. Is it like a lie, to leave it unsaid? Can and should she keep it hidden?] But then, maybe he would forget.