What do you think of a 90 year old mom calling her 55 year old son by his baby nicknames?

She is not having problems with alzheimers, she has all of her mental facilities, but insists on holding his hand when they are around, (walks between him and his dad holding hands), calls him Kennyben (his name is Kent), and Dolly. Tells him he needs to put lotion on his hands "dolly". She constantly calls him to complain how bad his dad is, putting himbetween her and his dad, whom she is still married to.