complex; Figure \[f:OMG\_comparison\] illustrates them in detail. The \] and \[\] lines at all epochs appear to have a broad peak, punctuated by multiple local maxima. \] has peaks near $-$2000 [km s$^{-1}$]{} and at $-$1000 [km s$^{-1}$]{} relative to the systemic velocity of [939 [km s$^{-1}$]{}; @Koribalski04]. This line may also have another bump near $-$3000 [km s$^{-1}$]{} in the blue wing of the main feature. The \[\] emission is even more complex, with local peaks near $-$3000 [km s$^{-1}$]{}, $-$1700 [km s$^{-1}$]{}, 150 [km s$^{-1}$]{}, and 1200 [km s$^{-1}$]{} (again relative to the systemic velocity of ). The \[\] $\lambda\lambda$7291, 7323 emission in Figure \[f:OMG\_comparison\] has a broad peak which is blueshifted by [$\sim\!\!$ ]{}1000 [km s$^{-1}$]{} in all three epochs.

Figure \[f:OMG\_comparison\] also shows the temporal evolution of the \] $\lambda$4571 and \[\] $\lambda\lambda$6300, 6364 line profiles. One of the most notable changes is the decrease in relative flux in the far wings of the \] line near $\pm$5000 [km s$^{-1}$]{}. As mentioned above, the feature near $-$3000 [km s$^{-1}$]{} appears to decrease in strength with time. This decrease of relative flux with time near $-$3000 [km s$^{-1}$]{} is also seen in the \[\] feature. Finally, we 