I think that Asa maybe be a little confused and upset when she gets back in control. I'd be upset with yoru here.
This is similar to how fiends keep parts of the original human's personality. They literally share braincells.
First the unfamiliar ceiling? Then Denji spilt yogurt?
What's next? Denji inavertedly starts a cataclysmic event that will wipe out 100% of life on Earth?