One jump down led to drowning, which actually led to Bella sinking to year 1920 where she meets pretty, proper, and peculiar Mary Alice Brandon. Bella can't stop history from repeating, but the choices she makes creates a ripple, changing everything for Bella fast forward 86 years to the present. What changes? The place where Alice resides in her heart. A/B the slow bang.

"In that moment, something shifted inside me, not in a physiological way, but on a much, much deeper level. In this moment, I was forever changed, by the seemingly simple human boy sleeping in the bed across the room from me." [Life and Death/Midnight Sun, from Edythe's POV/perspective.] Canon pairings, etc, etc.