Magnus Bane: Just tell me you're in love with Lydia, and I'll stop.
Alec Lightwood: I don't know. Why do you keep pushing? You're confusing me.
Magnus Bane: Confusion is part of it. That's how you find out if something's there. Emotions are never black and white. They're more like symptoms. You lose your breath every time they enter a room. Your heart beats faster when they walk by. Your skin tingles when they stand close enough to feel their breath. I know you feel what I feel, Alec.
Isabelle Lightwood: Slept at Magnus' place?
Alec Lightwood: Didn't do much sleeping. I was helping treat Luke's wounds. That's all.
Isabelle Lightwood: Really?
Alec Lightwood: What?
Isabelle Lightwood: Nothing. I believe you.
Alec Lightwood: Okay, Magnus made cocktails. I'm telling you, nothing else happened.