[Alice to Bella:] "I saw you jump." (17.17)
To Alice, Bella’s death was a reality. She saw and experienced her friend dying.
"Bella," Alice whispered. "Edward won’t call again. He believed her." (18.165)
Edward accepts Rosalie’s account as the truth. It seems that reality often depends on belief or trust.
[Bella to Edward:] "I’m dead, right?" I moaned. (23.16)
Much like Edward, Bella thinks she’s died and gone to heaven after the drowning scare. In contrast to Edward though, she doesn’t recite Shakespeare, but reacts very matter-of-factly. Does that fit her personality?