“Well, I hate to tell you this," she said, "but your friend is an asshole.""He's not my friend," said Simon. "And I couldn't agree with you more, actually."-Maia & Simon about Jace, pg.49-”

“Yeah, well, you clearly also couldn't be bothered to call me and tell me you were shacking up with some dyed-blond wanna-be goth you probably met at Pandemonium. After I spent the past three days wondering if you were dead.""I was not shacking up," Clary said, glad of the darkness as the blood rushed to her face."And my hair is naturally blond," said Jace. "Just for the record."Simon, Clary, and Jace, pg. 115”

“Well I'm not kissing the mundane," said Jace. "I'd rather stay down here and rot.""Forever?" said Simon. "Forever is an awfully long time."Jace raised his eyebrows, "I knew it," he said, "you want to kiss me, don't you?"Simon threw his hands up in exasperation. "Of course not but if-""I guess it's true what they say," observed Jace. "There are no straight men in the trenches.""That's atheists jackass," said Simon furiously. "There are no atheists in the trenches.”

“So, technically," Simon said, "even though Jace isn't actually related to you, you have kissed your brother.”

“I think I like ‘mundane’ better than ‘bloodsucker,’” Simon muttered.“With Jace, you don’t really get to choose your insulting nickname.”-Simon and Clary, pg.234-”

“Clary stopped dead in her tracks. "Simon?""Oh, God," said Jace, sounding resigned. "And here I'd actually hoped I'd got hold of something interesting." -Clary and Jace pg. 114”

“I just wanted to say that it's okay if you dislike me. If you make Clary happy, I'm fine with you." He stuck his hand out, and Jace took his own hand out of Clary's and shook Simon's, a bemused look on his face."I don't dislike you," he said. "In fact, because I actually do like you, I'm going to offer you some advice.""Advice?" Simon looked wary."I see that you are working this vampire angle with some success," Jace said, indicating Isabelle and Maia with a nod of his head. "And kudos. Lots of girls love that sensitive-undead thing. But I'd drop the whole musician angle if I were you. Vampire rock stars are played out, and besides, you can't possibly be very good."Simon sighed. "I don't suppose there's any change you could reconsider the part where you didn't like me?""Enough, both of you," Clary said. "You can't be complete jerks to each other forever, you know.""Technically," said Simon, "I can."Jace made an inelegant noise; after a moment Clary realized that he was trying not to laugh, and only semi-succeeding. Simon grinned. "Got you.""Well," Clary said. "This is a beautiful moment.”