| Quote #4 [Bella:] "…a pile of human bodies, drained and lifeless." (2.128) |
Bella recognizes the faces of her school friends and parents, and fears that's what she's going to do, what she will become.
| Quote #5 [Bella:] "I knew the sacrifice it has taken him. And then I'd ruined it, turned his gift into a disaster." (4.222) |
Bella knows that Jacob is making a sacrifice in attending her wedding, because witnessing her happiness with Edward, another man, causes him great pain.
| Quote #6 [Seth to Leah and Jacob:] "They're people to me, and I'm going to protect them, 'cause that's what we're supposed to do." (12.63) |
Seth has developed an affectionate relationship with Edward and the Cullens. For him, they're no longer vampires, they're people, and he considers it his mission to protect them from harm.