James struggles with hurt feelings over the Lily situation, creating tension within the marauders. When Severus Snape doses Remus with Veritaserum during dinner, the truth serum nearly forces him to reveal his deepest secrets including being a werewolf. Sirius quickly silences him, preventing disaster, but the incident highlights how vulnerable Remus's secret makes him. James and Remus eventually reconcile when James asks direct questions under the truth serum's influence, confirming Remus truly doesn't fancy Lily, restoring their friendship.