Isabel

“You're my sister," he said finally. "My sister, my blood, my family. I should want to protect you"—he laughed soundlessly without any humor—"to protect you from the sort of boys who want to do with you exactly what I want to do."

Clary's breath caught. "You said you just wanted to be my brother from now on."

"I lied," he said. "Demons lie, Clary. You know, there are some kinds of wounds you can get when you're a Shadowhunter—internal injuries from demon poison. You don't even know what's wrong with you, but you're bleeding to death slowly inside. That's what it's like, just being your brother."

"But Aline—"

"I had to try. And I did." His voice was lifeless. "But God knows, I don't want anyone but you. I don't even want to want anyone but you.”
― Cassandra Clare

“Diary,
You don't know what it's like. To wake up and see her there.
But I do.
Draco”
― Onyx_and_Elm, Breath Mints / Battle Scars