He needed Sherlock to break down, before he could built him up again. He was planning on tearing down the wall he had built around him.
"Every inch of you is silently screaming out his name. Screaming out how much you miss him." He brushes off some little dust that settled down on his suit before carrying on. "But there's no one answering your crying out. Because they can't hear you. Because they have forgotten. After waiting, and waiting, after desperately looking all over for you... They gave up."
He was calm, but his voice sounded dramatic and sharp, as he spoke the words he just had.