Option One:

Steven Glass did a great deal of pretty good sneaky things. No one actually suspected what Glass was doing the whole time and believed every word. The way he did the whole thing made him present the vibe doing things in only the satisfaction of others. Towards the end of the movie you would clearly catch on to what was obviously going on and catch to see it was all clearly just a lie from the get go. Once the guy did all the his questioning to catch Glass in a lie it all really went downhill from there to the point of no real return. Steven really went left when he knew from the jump that he was entirely wrong and that there was no reason to try and return a next day. After his faults being pointed out he becam suicidal and wanted to run away but needed the assistance of his friend which didnt happen so he went on by himself.