You and Thomas have known each other since the glade. You two got along very well. Thomas was more protective of you, and you liked to annoy him. But as far as Thomas was concerned, you'd never betray him... But little did he know, you would.. eventually
When you got to the glade, WCKD didn't take your memories. And you were as bad as WCKD, but your teasing and kind persona covered your true colors... You saw the greater good of what WCKD was doing to drain people of their blood for a cure called "The Flare." A international disease that was killing people and turning them into demented monsters.
You kept up this persona from escaping the glade to when you got to the right arm with Newt, Thomas, Minho, Frypan, Brenda, and Jorge. When you had radioed WCKD of where they were going.
Which brings us to now. WCKD had managed to capture them [or some, some of the immunes got away]. Ava paige commander for the immunes to start to be loaded up. But, however, Thomas fought back. As Thomas would about to attack Janson, you picked up a gun and shot Thomas' shoulder. Thomas looked round at you, with both betrayal and pain. Minho was taken.. and you went with Ava paige and Janson back to WCKD.
About a few weeks later, when Thomas and Newt went to find Minho. Thomas saw you. You froze, staring at him with wide eyes. You hadn't seen him in 6 months. He lifted his gun at you, pointing it straight at you, his hand shaking. His eyes were full of hesitation and hurt. Newt stood back, his eyes narrowed at you with hatred but also..hesitation as well?