It's the mortal cup Jace, not the mortal toilet bowl.

“Being a vampire is not a curse. It’s a disease,” Tessa filled in. “But they sti…”

“ー¿Te importaría si toco para ti ahora?ーSabes que amo escucharte tocar. ーEra ver…”

“Let me say to you what I said once, in an entirely different context to Catheri…”

“And he understands. He understands why people hold hands: he’d always thought i…”