That, or he was similar to "new meat" in a prison, IOW, passed around like a pack of Kools.
I’m sure that was part of it, but that still isn’t enough to save his life upon first contact. According to the other guys in his platoon, he’d been learning Pashto before they deployed. It’s not unreasonable to assume he communicated to Taliban fighters his intention to leave the U.S. Army and help the Taliban kill Americans. The haji butt sex is just a fringe benefit for all involved.