Friendship Quotes in New Moon

How we cite our quotes: (chapter.paragraph)

Quote #4

So much for my chance to put some distance between us. I couldn’t stand hurting Jacob; we seemed to be connected in an odd way, and his pain set off little stabs of my own. (9.19)

Bella thinks that drawing the line will hurt Jacob. But isn’t she ultimately hurting him more by not drawing the line? What does she mean by "[being] connected in an odd way"?

Quote #5

"You shouldn’t waste [time] on me," I said, though I wanted him to. Especially if he was willing to accept me the way I was – damaged goods, as is. (9.151)

Bella believes she’ll never recover from losing Edward.

Quote #6

[Jacob:] "I won’t ever let you down. You know that, right? That I would never, ever hurt you?" (9.212)

Jacob makes a big promise here. Do you think he later wishes he’d never made such promise? Does he keep it anyway?