I know she has said he is getting worse and she is dreading, and putting off, placing him in a facility.
She really REALLY doesn't want to do that. She was married to a big jerk the first time and divorced him and found Don who has turned out to be the "love of her life". I suppose she will at some point realize that it is best for him and all concerned for him to live in a nursing home. Don has a daughter here in town and a son in Iowa City but Sue gets almost no help from them at all.