Dionysus briefly considers grabbing one of the bottles of wine he stocked this kitchen with on a previous day to take back to their room for later, and then immediately disregards that idea entirely. No matter how tired he is from making vines lug the pinball machine around earlier, the day he can't make a new bottle of wine is the day he ...dies or whatever. Not that he can die. But you get what he's meaning. Instead he squeezes Grantaire's hand and heads back out into the hall.