Getting worse....

My mom is drifting farther away, into that misty world of dementia.  Her behavior is becoming more bizarre.  I had to move her out of her assisted living facility.  She is now in a private home with one-on-one care, but she is not happy.  Will she ever be happy again?  Will she know if she's happy?  This disease is a heart-breaker.  She still recognizes me some of the time, but it doesn't seem long before she has drifted a little farther from me.  I have had all kinds of help and support during this process, but I still whine.  Please bear with me.  I just love my mother and want the best for her.