It is very difficult to see someone you love develop dementia. My husband's father had dementia and we saw him go from an intelligent, funny man to a confused and sometimes very difficult person. And vulnerable is a very appropriate word to describe the situation - we worried about his welfare a lot during this time.

My husband had a hard time accepting that this was now the father he remembered. We were in charge of is care (he was widowed) and we could see that he could no longer live alone safely and there issues around that to be resolved. We both had lots of anxiety, fear, deep sadness, exhaustion, and at times, frustration and anger even though we knew his dad couldn't help his behavior.

Keep in mind that you didn't cause this issue and you aren't responsible for making it go away either. And perfect acceptance just isn't possible. In the end, we kind of bumped along and did the best we could under difficult circumstances.

Ask for help when you need it, just like you are here.