Cassandra Clare said this quote

Jem had moved the same way coming in, but as Will neared him, Jem took a step toward his former parabatai, and the step was swift, eager, and human, as if being close to the people whom he loved made him feel made of flesh and racing blood once more.“You’re here,” said Will, and implicit in the words was the sense that Will’s contentment was complete. Now Jem was there, all was right with the world.