Cassandra Clare said this quote

Will is… difficult,” Jem said. “But family is difficult. If I didn’t think the Institute was the best place for you, Tessa, I wouldn’t say it was. And one can build one’s own family. I know you feel inhuman, and as if you were set apart, away from life and love, but…” His voice cracked a little, the first time Tessa had heard him sound unsure. He cleared his throat. “I promise you, the right man won’t care.