[He hadn't said anything when he learned Dimitri's name, hadn't said anything when he realized this was the same person Yuri mentioned before, had quietly and politely made no signal whatsoever that he was bothered in any way (aside from becoming slightly more taciturn than usual).
But at some point, in the privacy of his room, he finally sends Yuri a message containing only the words:]
shortly after dimitri moves in
But at some point, in the privacy of his room, he finally sends Yuri a message containing only the words:]
He isn't little.