Dad is 90 and unwillingly living in an ALF. Lately he has become more cranky, miserable and complaining than ever before. He is also asking me and my brother why "it isn't March, anymore?". So, I understand he has dementia but is his bad mood necessarily related to the dementia or are his emotions valid expressions? I don't want to brush off his "bad mood" and blame it on dementia if that is not the case. Any ideas?