any grudges, though she didn't seem to react to them being there?
My guess is that because MC has emptied her batteries before, her presence became too thin to notice.
But I really thought we see more revenge, before an enemy appears, who poses a real thread to our heroine. Maybe see has been introduced to show us, there is a landmine. But then again she said that about her mother, marking herself as a prime target. I'd be surprised if MC wouldn't want to pick her the next target next morning, first thing first. IMHO its too early for the standard plots. (I personally don't like the dangerous enemy for OP-MC at all. What's the point about her being OP to begin with?)
But I have a idea how it might go. MC notices the danger, avoids her, stabs picks on everyone around her, making her feel helpless. (But there is a hugh chance, she will relent at MC's family to get her, one she figures out MC's identity as the grunge. Possible showdown)
And the (2nd) most dark ending: After 100 deeds, MC picks exorcist-girl's body as reincarnation target.