I love my mother very much and care for her daily. I do have caregivers that come in the afternoon so that I can go home and try to relax. She also has graveyard caregivers. But when someone doesn't make it to their shift I end up working it, no matter the shift. She can become delusional, verbally abusive, and verbally aggressive towards me and can single out a caregiver to the point that I have to replace that caregiver. I am at her home everyday and am exhausted. I get calls from my mother when I am home trying to relax about her delusions about a caregiver. It just never ends. I have 2 brothers but they don't help out.
What kind of doctor is following her dementia? Has she seen them lately? Sometimes the aggressiveness can be relieved via medication. Worth trying if you haven't already.