
I know it is so frustrating!

So sorry you are having to go thru this!
My mom wouldn't know night from day and would tap my dad's shoulder all night as she was afraid he would be late for work. She also had the speech problem...couldn't think of the right words, interchanged words, used the wrong word, (aphasia).... etc. Also, put crackers in the fridge and milk in the cupboard. She would get frustrated too, but didn't act out....became depressed and sad as she lost herself piece by piece...
My FIL who is in the first stages....(actually he might be in stage 4 or 5, but what do I know)

...is getting very mean! He not only takes apart the lawn mower, but buys more at garage sales! I'm talking riding lawn mowers!! He has 4 now and none of them work!!! He doesn't know how to fix them anymore....and can't mow his own lawn anymore... (Then what's he doing driving, you ask?)
With my mom I would try to put myself in her shoes.....she hated not being able to do things. And it was easier as she was a female and she wasn't aggressive.
With my FIL, I pretend I'm a deaf mute and try to ignore inappropriate behavior. I try to steer the conversation to something pleasant.
I pray alot!!! You'll be in mine!