Alec Lightwood had never written to his soulmate. Not once. At first it was because of his inability to accept the fact that he was gay, but over the years it had morphed into a fear that he just wasn't good enough for his soulmate. Then Magnus Bane strolled into his life, and all of his plans to not contact his soulmate went spectacularly to hell in the best way possible. (This story is also posted on Ao3 and Fanfiction.net under the name Cinnamon_for_days and Purecinnamonbun)