I had to read all of the comments to be sure this theory was not posited previously. With the need to RE wire Caleb’s brain, after the heavy metal is removed, would the wolf shift healing help at all? Seems like if the person is hurt in their “human” form, that typically a couple of wolf shifts is all it takes for them to be good as new again. It Caleb’s neck wound is still healing too.
This theory may apply to other shifterverses, an not this one.
Learning about Asa’s betrayal, and attempted murder for coming out to someone he could not trust was something. And going forward with brutal honesty, especially in a mate relationship is really good.