This is Newt, from the Maze Runner. He's book canon, and will be coming in in the first 1/3 of The Death Cure. He's found out he's not immune, and is starting to have issues with rage and control as the Flare starts attacking his brain. This is really, really depressing for him, and he's not in good mental shape.
He's also contagious, so when he finds out what's going on and where he is, he's going to isolate himself as much as possible. He's going to need a healer eventually, but I also want him to suffer a bit first. ;)