Both Bella and Edward acknowledge that their love is life-changing and all-consuming. It allows them to be who they want to be, as they’re more comfortable with each other than they are with anyone else. However, Edward characterizes Bella’s choice to stay with him as something that’s going to deprive her of her humanity. Bella doesn’t agree with this, though, since she’s so in love with Edward that, in her mind, their love can conquer any problem. Edward, however, loves Bella as she is, and so her love for him causes him grief because of his fear about how it might impact her.