This is something that happened a few weeks ago but am still mulling over it and finding it weird and would like some opinions please.
My stepmother married my dad when I was an adult so didn't bring me up and I think of her as my DF's DW iykwim. They are both 77, very active and busy and live a 2 hour drive away from me and my family. I have on the surface a cordial relationship with her but have always had a lot of ishoos with her under the surface. I can't bear her, she is very manipulative, always twists things so that she is the martyr and other people in the wrong. My DF is completely under her thumb but seems very happy with the situation.
So the incident in question started when I phoned my DF, he seemed his usual self but told me there was some bad news, my stepsister's MIL was in hospital and very ill. The next day I found a message on my mobile, it was my DF saying had he told me about stepsister's MIL, he couldn't remember if he had. Then I got a call from SM, she said she was worried about my DF's memory, particularly that he had forgotten/was unsure whether he had told me about stepsis's MIL but that generally he didn't remember things she told him, that I should tell her information because he would forget to tell her and that it was a good job I was coming to visit in a few days as we needed to talk. I was very shocked as I see my DF every 6-8 weeks and talk 1-2 times a week and had not noticed any problem with him.
So I spent the next few days worried sick, googling dementia/memory loss and generally thinking worse case scenarios. When I went with my DC to visit for the day I was monitoring my DF's every word and action to see what was going on. After a while I started feeling bemused, DF was the same as ever. The whole day I didn't notice him forget anything, repeat himself or do anything that seemed out of character. I didn't really get to talk to SM alone at first as lots of her family were there but later on when we did have the chance to speak she didn't mention anything about her concerns, seemed in very good spirits and I didn't as was feeling quite bewildered at this point by the discrepancy between SM's version of my DF and the reality.
So a few weeks on, SM has not mentioned anything further about my DF's "problem" and I have had a number of conversations with him in which he seems completely on the ball. And I'm still wondering WTAF and would value any MN opinions.