I guess I would suggest dealing with behaviors as consistently as possible, ignoring the undesirable behaviors as much as you can. It would help if you were familiar with how much you can or cannot expect from her. [and you probably are] Sometimes, it can be helped, but mild cognitive impairment is part of the package, including paranoia. As people treat us differently, our "circle of trust" gets smaller.

She needs someone she can count on all of the time. Anxiety comes from all of the unknowns. Even though you can't control her thinking, you can control your reactions. Two people out of control is chaos. i don't know who has it harder - pwp or carepartner.

paula

of course medication is a major factor, as well as exercise and doing something you like.