Thinking of you Christine as you struggle through this most difficult of times in the cancer journey. I am sure Matt is indeed confused and hallucinating at times but gets angry when you can't understand what he is up to because it is so real to him in his mind. I went through this with my husband in his last weeks and days. All you can do is gently dispel the errors in his thinking and redirect if necessary. I can remember my husband when his hallucinations started, asking me if something was real or in his mind. Eventually his periods of lucidity decreased, thankfully he was easily redirected. If Matt should become aggressive in his thinking and behavior sedation would need to be considered. I hope you are getting some support now from Hospice, Don't hesitate to call them for help anytime you need it and also friends and relatives that may be able to give you a break. This a tough road you are travelling and you need all the help you can get. May you find the strength and courage to face each day.