City of Bones
How we cite our quotes:
"Falcons are not meant to be loving pets: They are fierce and wild, savage and cruel. This bird was not tamed; it was broken." (11.160)
This story told by Jace says a lot about why he puts up a prickly façade to keep people away. He's both scared of loving and being loved. Vampires on the other hand? Not scary at all.
"I've only ever loved three people in my life," [Clary] said. "My mom and Luke, and you." (16.66)
We're glad Clary didn't include Jace on this list. She's only known him for a few days at this point, so at least we know she's kept her head. Simon's been around for years.
"There might have been a time when one or the other of us considered it, but [Isabelle's] almost a sister to me. It would be strange." (17.69)
Almost a sister = strange. Actually a sister = go for it, bro! This book has some strange notions about incest. But we have a sneaking suspicion that those notions might be explained in the sequels…