My Husband had foot surgery in September. 2 foot surgery I the same foot. He is still in rehab . He has a cast on and can only do partial we

Weight bearing. About how long will they keep him in Rehab. and he tells me me when he comes home he does not want caregivers. He wants just me. Does that mean that he might have dementia or is he just depressed. I do not know. He says he wants to walk home.He is 80 please answer me