When Dean finally returned to their motel room, Thalia had never been happier to see anyone in her entire life. It's true that Dean kept his promise and called her on a prepaid phone to let her know that he was on the way back, but she still couldn't breathe properly, not until she saw him in person and saw with her own two eyes that he was okay.
Good thing he looked more than okay. Her warrior was back, his eyes glittering with menace as he spotted Dr. Steve Lucas sitting stiffly at the kitchenette. Thalia had brought the scientist back to their motel room claiming that it was for his own protection, and that he needed to be away from the terrorist's eyes. She'd led Dr. Lucas to believe that Dean and an entire team of special agents were pursuing the terrorist, when in fact it was Dean's solo mission on his part.
Yet he was no longer working solo, she realized once two men in dark suits followed him into the room.