TwoKatss
Confusion, delusions, ability to dress and kept up appearances, and shortterm memory loss are all signs of some type of dementia. She needs to be evaluated by a neurologist as SnowyLynne said. If hubby is also "unkept" as well, he may also need to be evaluated.
There are other things that can cause the same symptoms, some of which are reversable. It's important for her to be evaluated soon so she can be put on the appropriate medication.
Good Luck.
Sciteach