I just saw my bestie this weekend, someone I’ve known for literally as long as I can remember, and have exchanged letters with, visited with, occasionally gone on vacation with, and talked on the phone with for over 50 years. We still talk like we’re being paid by the word, and like @wolfpup said, mostly not about routine catching-up stuff, either.
Any ordinary mundane remark just opens more doors to other perspectives and topics. “I think you should get these pull-out units for your kitchen cabinets, they make it so easy to access your stuff!” “I’m totally not calling you crazy and I am definitely following up on a lot of your recommendations, but I gotta say I’m not feeling it about the spending hundreds of dollars to marginally improve access to stuff that I don’t find it particularly inconvenient to access anyway.” “I get that, but I find they really lower the threshold for motivation to get out kitchen stuff and start cooking.” “Ah, that’s because you’re a different Clutterbug type, the storage access is more of a barrier for you than it is for us Crickets!” “Do you really think that corny little commercial classification schemes like that are telling people anything useful about themselves?” “Well, all these divide-people-into-n-types schemes are arbitrary and artificial, from astrology down to Myers-Briggs, but I think they provide a framework for people to sort through their self-assessment, and for that purpose one’s probably as good as another” and on and on and on.
Would this conversation seem boring and pointless as hell to most other people? Probably! The point is that we’re both still really comfortable with, and really interested in, the different ways we think, and even small unremarkable remarks give us new stuff to think about.
Yes, being able to be silent together is also great, and some relationships are more heavy on the mutual companionable silence than on the conversation. I’m not trying to advocate constant chatter for chatter’s sake, I know that incessant one-sided communication with no effort at real mutual engagement can be tedious and frustrating! There is no one right way to communicate in relationships.
I will say, though, that if either party is consistently unhappy or bored or frustrated with how conversation patterns are developing, that is most likely an issue with the relationship, rather than just a natural consequence of aging or relationship longevity. If there’s a limited and dwindling supply of things that you’re interested in saying to your wife, and she feels deprived of conversation on that account, then maybe you never had a sustainably fulfilling and self-renewing communication channel working? You didn’t notice because you had an accumulated stockpile and a small supply stream of things to say, but as you draw down that stockpile, it’s not spontaneously refilling with new things you’re interested in saying.
Are you maybe just a natural “rare-talker”, one of those people who’s genuinely content to utter a spontaneous remark once every week or month or so? Or do you have more spontaneous conversational impulse with other people, and it’s just talking to your wife that seems like more of a chore?