My father is 87 and has late stage dementia. He lives in an independent living facility and has in home hospice as well as 24/7 caregivers. He still gets out and about within the facility and is quite sociable. However, Dad is absolutely fixated with a woman who works there. It seemed harmless at first, but his obsession has become a problem. He pesters her all day and becomes agitated or worried if he can't see her. The caregivers know to re-direct, but it does little good. Dad is convinced she's his girlfriend and they are going to get married. It's becoming increasingly difficult for this poor woman to do her job with Dad sitting outside her office waiting for her to acknowledge him. How do we get him to leave her alone?