Enjolras is not a man much gifted at softening hard news, in part because he sees no benefit to doing so. This must be said; he says it.

"He's alive. He's come directly from the Glorious Days, from 1830."

This is perhaps not a conversation to have standing in a doorway, but Enjolras will not push his way into Grantaire's rooms. Even in Paris, over the course of years, he saw the outside of Grantaire's lodgings but never the inside. It's not a question of tidiness or hygiene, it's merely that -- well, there's an awkwardness there, there are reasons; he will enter when Grantaire invites him in, and not before. That's all.