I take care of my dad with Alzheimer's. For the last 3 months he lives here. He lived with his girlfriend for 10 years and now she's not willing to give up anything to take care of him but refuses to leave his life. She comes and gets him 1-2 days a week and then answers some of his calls daily. He is VERY obsessed with her, but thinks we are ruining it for him, she won't tell him she won't take care of him and we tried but he thinks we are lying. I don't even think he can comprehend. He goes in a rage calling her over and over and quarelling at the voicemail. It's exhausting. I want her gone cause it refreshes his memory of her each time she gets him and he is perverted in his talk about her. She is 15 years younger than him. Any Advice?