Okay, first foremost I think Clary is being as perceptive as Patrick Star from Spongebob Squarepants. Seriously, both Luke and Jocelyn are basically screaming at the top of the lungs with their body language that something is wrong and/or they are hiding something. He might as well be wearing a sandwich board that says, “I’m hiding something, ask me how!” Can I also talk about the fact that Jocelyn are Luke are whispering so loudly that Clary can hear them. I’m not sure, but I think Clary is still across the room at this point? This is another plot hole, it’s also lazy foreshadowing. Clare has to be one of the laziest writers I’ve seen in a while.