Magnus did not take such suffering lightly, but even mortals did not die of broken hearts. No matter how cruel Grace had been, he told himself, James would heal. Even though he was a Herondale.

Not everything Jace did was insane and suicidal, she reminded herself. It just seemed that way. -Clary, pg.46-

Samuel! Are you alright?" A vision of Samuel being brained by the falling bars rose up before Simon's eyes. Samuel's voice rose to a scream. "GO AWAY!" Simon looked sideways at Jace. "I think he means it." Jace shook his blond head in exasperation. "You had to make a crazy jail friend, didn't you? You couldn't just count ceiling tiles or tame a pet mouse like normal prisoners do?

He made a sound like a choked laughed before he reached out and pulled her into her arms. She was aware of Luke watching them from the window, but she shut her eyes resolutely and buried her face against Jace's shoulder. He smelled of salt and blood, and only when his mouth came close to her ear did she understand what he was saying, and it was the simplest litany of all: her name, just her name.

A patient, methodical sort of madman. The worst kind.

The destruction of all Shadowhunters' said Scott. 'I rather thought you knew that. It isn't a gardening club.

I’d rather have you in my life even as a brother than not at all—