Yet he still managed to make sergeant so it would seem that he had adjusted somewhat to 'Army life'.
Note that he's still considered on active duty status which means that he remains subject to the same regulations as any other member of the military and will therefore have to answer for any violations of those regulations. Granted, we should all be happy for his family that he's returning from the war in something more than a flag-draped metal box, but we also must wait for the Army to decide what happens next with respect to what did or did not happen while he was in Afghanistan, both before and after he was taken hostage. This is NOT the role of Congress nor even the White House, but rather the Army and the Department of Defense, period.