Another thought. At the end of my treatment I experienced what they decided was "steroid-induced psychosis/delusions", I went more than a little mad. The steroids were part of the anti-nausea regimen that I was given during chemo, I believe. I understand that bad reactions can be had from many of the other drugs that get used in these cases, such as Fentanyl. My experience didn't result in outward aggression, but as we know, everyone reacts differently to the drugs in these cases. I spent several days in the "brief intervention unit" and they gave me other medications to sort of dampen everything down (sorry, I don't recall what those were), which did work. My delusions passed.

I lack words for your situation. Whatever does happen, I hope in time you are able to feel that the disease and/or the drugs caused this to happen, and that it's not your husband.