His eyes closed against Lucian's very harsh, very true words. Damon's hands curled into fists, as if physically fighting off those very words that spewed from the older vampire's lips. Before Damon even realized it he was shaking his head in protest and hazel eyes opened, lifting to meet Lucian's.
Damon simply could not live with himself, alone, for eternity. He could not go back to Katrina because he hated her as much as he loved her. The younger vampire simply could not just leave Bella after finally finding her. Damon's gaze reflected back to Lucian the utter fear he felt at parting from Bella, of being alone, of being just exactly what he was.