Sounds like a difference of perception. My last boyfriend scheduled "fun" stuff and, while I appreciated the effort, he bored the Hell out of me. I scheduled "fun" stuff that stressed him out. We finally decided we just didn't have the same ideas about "fun".

I can't tell if you're being facetious about the "short term memory thing", but I would think that could be wearing over the long term. Sort of one of those low-grade but nagging stressors. Maybe she's reacting to that even though, logically, she knows it's not his fault. (My mother is home all day and, when Dad and I get home, she talks nonstop and follows us around. Drives us insane. We know she just wants some company since she's not really supposed to be out in public a whole lot, but sometimes the first emotional response I want to give her is to tell her to back off and get a life.)