'Who's there?' he called, then frowned. 'Of course,' he added, addressing the darkness all around, 'even I, as a Shadowhunter, have seen enough movie… - Cassandra Clare

"Sebastian just smiled. “I could hear your heart beating,” he said softly. “When you were watching me with Valentine. Did it bother you?”
“That you seem to be dating my dad?” Jace shrugged. "You’re a little young for him, to be honest.”
“What?” For the first time since Jace had met him, Sebastian seemed flabbergasted.

She was thinking of Simon, leaving for a house that no longer felt like home to him, of the despair in Jace's voice as he said I want to hate you, and of Magnus, not telling Jace the truth: that Alec did not want Jace to know about his relationship because he was still in love with him. She thought of the satisfaction it would have brought Magnus to say the words out loud, to acknowledge what the truth was, and the fact that he hadn't said them-had let Alec go on lying and pretending-because that was what Alec wanted, and Magnus cared about Alec enough to give him that. Maybe it was true what the Seelie Queen had said, after all: Love made you a liar.

How to Come Out to Your Parents," she read out loud. "LUKE. Don't be ridiculous. Simon's not gay, he's a vampire.