He wants to refuse the offer - he brought that cookie for Thanatos, to offset the medicine - but if this makes Thanatos feel better, he may as well. He accepts the cookie piece but doesn't eat it yet. "Of course. Otoha is my friend. And...so is Soldat." At least he can talk about Soldat in present tense.

"I didn't know the train could bring people back until you told me." It had made handling a friend's corpse a less harrowing experience, at least.