"I know we may make it, but I also know that it is just as likely that I make it by myself as the entire crew." He sighed a little and looked at her almost pleadingly, "If I lea you all into battle every death will be on my hands because I was too wrapped up in my own selfish guilt and sadness to develop the weapon needed to take these guys out."  He pulled her closer and stared up into her eyes, "Surely you can understand why I wouldn't want that?"