After Gwen lies to Layla, who shows up to investigate the noise and believes the lie, Will breaks up with Gwen refusing to attend the dance even though his parents are going as honored guests and reconciles with Warren.
After Gwen lies to Layla (who showed up to investigate the noise) that Will never liked her, Layla believes the lie and leaves heartbroken. Will, realizing it was Gwen's fault, breaks up with her and refuses to attend the dance even though his parents are going as honored guests and reconciles with Warren.