Because
bugsfic and
lacklusterfic said I would:
He'd intended to stay with Laura forever, but the lack of technology was dooming humanity to extinction. They came, asking him to lead them again, and he agreed. He found he could live without her, and was scared by what that meant.
He wished he had tangible proof of their bond, but he'd sent his ring with her. Tauron tattoos were public signs, but he was Caprican, too. He had the symbol of their union engraved in the delta between his scars. None would see it, as none had seen Laura's ring, but when he joined her, she would know.