I identify with everything you're saying. All the shared activities have pretty much gone by the wayside. I don't even want to go anywhere with my husband because it's too embarrassing. He talks to everyone he meets and tells the same stories over and over, often to people he's told before but forgotten. There's a coffee shop he loves to go to and so far the people there seem to put up with him. It's at the edge of the university campus where my husband used to work and he sees lots of students. He loves talking to them. He used to go to our local zoo and loved that so much but he was barred and told never to return. Too many magic tricks for too many children. He tells me the same things and, like you want to talk to a women, I want to talk to a man. My brother-in-law was here for a visit a couple of weeks ago and it wonderful talking to a man who could carry on a conversation. I know you see the danger of finding a woman to talk to, but I'll share something here I would never share with my husband. I've reconnected with an old college boyfriend and we email frequently. We live on opposite sides of the country so there's really no danger, but the support I get from him makes all the difference. I can tell him what I'm going through and discuss other things too. A virtual conversation. I can't do this with my husband if I feel isolated. I don't want to hurt my husband and never would, but I can't spend my last years (I'm 79 with a recently diagnosed aortic aneurysm) in acute loneliness.
The only diagnosed we have so far is: dementia. Next week we see a neurologist, but even with a clear diagnosis I'm not sure that would make a difference. We can't stop what's happening. I do want to know what we're dealing with but I'm not looking to the medical industry for real help. I think hiring a nice person to clean my house would be more useful.