Time-evolution of the narrow- (top panel) and broad-component (middle panel) Hα profiles, and the broad-component (bottom panel) of the Pa-β profile, plotted in velocity space. Over-plotted as dashed cyan lines are Lorentzian functions with the FWHM velocity of 3500 km s⁻¹ and the peak shifted by −500 km s⁻¹. The redshift is determined by the average of the narrow emission peak. Both broad components are overall symmetric and do not exhibit significant evolution over the duration of our followup observations.