The first thing that I thought when reading this chapter was actually not about Edward, but about Jessica's rudeness. I think it was obvious that maybe it was to show the juxtaposition between a person like Jessica and someone like Bella.
Jessica obviously knew that Edward and Bella were close, and even though Jessica may think that it's something that should be easily "gotten over" her response to Bella is revolting.
Though some of us probably have gone through the pain and agony of loosing that person that we first loved is there in REALITY a relationship where people can't HONESTLY live without each other, rather then move on.🤔