Crossing a Line

Set in the Marauders' sixth year. Severus has seen how Potter is trying to "be better". The way everyone, even Lily has fell for it made him sick. Was he the only one who saw through the act? Severus felt like it was his duty to expose James Potter for the weak coward that he really was. A bit of J/L hinted at and a lot of Snape vs James rivalry.