He has Alzheimers. He is delusional. He thinks we are divorced and he is married to someone else (a nurse at the facility he went to after shoulder surgery for physical therapy). It used to happen about once a week that he would say he is leaving. Now it is every day. He can't drive and I have taken away his credit cards so he can't call a taxi, even though he says he can pay for it with his driver's license.