as much as it sounds bad to say, anger is good. it means he isn't denying it (that he has/had a disease)... it comes out in many ways and sometimes even the caregiver says things to the patient that hurts them unintentionally. anger- if he shows you- is also good- that means you are important to him and he feels comfortable showing you this. blame- another stage... still good- everyone has to go thru these feeling with this diesease. it is almost like a death in the family without the presence of the body. as strong as the patients and caregivers try to be, it can still reek havoc.
they do offer antidepressents- Lexapro was great for my dad.. and Celexa helped also. sometimes, it is good to ask the doc to prescribe you, the caregiver one, so that you can be productive while taking all of the emotions you have and the patient has-you end up having to sort thru so many sides of it.
don't forget to take time for yourself- to balance, focus, sort thru emotions-even for just one hour. with 5 children and a husband, i'm sure your time is verylimited. and lean on your friends. my dad and i both had great friends that would visit, bring stuff(even if it was toliet paper and paper plates).. help with vacuuming, etc. don't be scared to tell those around you that you need some help or even a sounding board.
hang in there.. this too shall pass... it always does....