My mother suffered from Alzheimer's for the past 6+ years. In addition she was diagnosed with terminal cancer and passed away within 10 weeks. I relocated to the same city 3 years ago in order to be close to them, however my father insisted on providing 95% of her care. He has lashed out at me quite frequently and I do not take offense since I cannot imagine how he endured caring for and then losing my mother. My daughter is one of the only grandchildren ( there are 5) who visited, sent cards, flowers and gifts. During this weekend of the Memorial Service, he was curt and unpleasant only to her. ( he does not like her husband!) He plays favorites with my other daughter and son-in-law. Everyone is returning next week for Christmas, do I ask him why he behaves in such a manner towards my daughter or ignore it? I don't want to make him more upset than he is, however I believe I need to protect my daughter from the unpleasant comments.