I don't want to get involved in a make-believe scenario so I don't want to move the gift. She imagines this man used to like her and now I'm cheating on my husband with him.
Dementia, I guess. Two more hours of cognitive testing scheduled in 2 days. Moving to assisted living/memory care in 12 days.
Yes, this sounds like dementia, for sure. I would not play into this, either, given she has given it a bit of a personal "twist" about you. Just tell her she is mistaken and no such man exists if she continues.