I actually felt bad for Satou's aunt, of all people.
She's one of the most twisted and damaged characters in this story if not the most (and that says something), and one can argue she had a strong influence in Satou's development into what she is today, but that goodbye felt very poignant.
... and even then, I wonder if this woman understands her only known relative is using her and ditching her like an expendable tool, or if she simply does not care because her worldview is too messed up to comprehend.
Still, thanks a lot
@waterflame for the update, I was worried this had been dropped.