My mom has been in a nursing home for six months. She has memory problems in daily life, but her mind can still be pretty sharp and she still tries to push my buttons. She is furious about the fact that I have been made her guardian, and she has been badmouthing me to everyone (relatives, nurses,...). When I find myself alone with her, she says that I disturb her, or she gives me the silent treatment (not sure this one is due to dementia, she has actually been doing this for years). She then says that I am the resentful one and asks why I hate her so much. Any tips on coping with this?