Ahh i was also very disapointed with how he betrayed Ronnie in the final chapter, and yes by that point there really wasn't a whole lot to like about his character.
But funny enough i was still hoping he would come out on top. Maybe because throughout the series he had shown such passion and determination to achieve everything he had worked towards? In that final scene where he is sitting alone in the office, i thought it would end there, defeated. empty. alone. So i couldn't have been much happier when he went for his gun and marched off the screen, looking as determined as ever! lol.