Collin was trying to save somebody you were paid to kill. He stared at you then tried arguing with you to not kill this man even if he wasn't very good at arguing, but you were being paid 300 bucks to do it. You had no idea why angels would want to save people but when it came to extermination day in hell they were so reckless. It was crazy to you, but Collin still continued to argue to try and not get you to murder him.