At the center of Franklin and Eva’s argument is the question of whether Eva’s aversion to Kevin is due to the way Kevin innately is or if Eva has simply developed a poor relationship with her son. Of course, Franklin’s argument completely disregards what role his own parenting may have played in Kevin’s disturbed behavior. Kevin’s unprompted mention of Trent’s bike suggests that Kevin knows more about the incident than he's letting on and that Eva was correct to blame Kevin for Trent’s injury, but Franklin doesn’t seem to recognize the significance of this.