Elon Musk arriving tomorrow to romance my elderly neighbor!

My neighbor and best friend has been texting with Elon Musk for months and he has told her he would be coming Christmas Eve to see her. He has promised her money and car as in all the other scams – and I cannot convince her he is not real. She has invested with him- though she is poor and can barely take care of herself. She does own her home and think she would sign it over to him. I’ve compiled evidence to try to convince her that this is a scam but he has an answer for everything I bring to her. He is communicating through Whatsapp. Sadly this will end up being the worst Christmas ever for her as there doesn’t seem to be a way to stop this.