I am not actually surprised that she was reluctant. I cant honestly see that plan working.
1 - Logic and reasoning dont work with dementia, so its almost impossible to get someone with dementia to change their mind over something.
2 - Even if the psychologist does get her to agree in the moment, she is extremely likely to change her mind back again
3 - She will not retain the things that they have talked about and after a few days may well not even remember that he came.
4 - People with dementia forget facts and experiences, but they remember the emotions that went with things that happened. Your mum will probably forget that the psychologist came to talk to her, but is highly likely to remember the feeling of wanting to go home and this my well re-enforce the obsession.
I honestly think that getting someone in to talk to her about it will just make matters worse. Much better to ignore it and eventually the obsession will fade. I think this is one of those things that you cannot fix.
I need to give it a go, if it is possible, of course.
I will test it and see how this works and what are their recommendation.
I don't look for logic, but I am trying to get someone to talk to her and see where she is at for the moment. Someone who knows how to talk with people with dementia. To see if someone can convince them.
The head nurse gave me an example of someone who was there since May and same, wanted to go home. After a while, he started accusing the staff they are lying to him and he will never go home. So I also understand why they are not very keen on talking., but I also want to try and avoid that.
Imagine grandma saying nonstop to the staff & us she wants to go home. Heartbreaking.