This guy is so delusional that he probably figured the Talban would allow him to wander around like the U.S. Army did!
Something like that, I'd guess. His pajama boy sense of entitlement for being a special snowflake probably made him think the Taliban would loooove him, treat him like a brother, give him special privileges. If he thought his living conditions with the US military were so awful, I can only imagine what he thought of the living conditions of the Jihadis. The Jihadis probably beat him and put him in a cage just to stop his constant whining and snot-nosed blubbering.