I've namechanged for this, but post regularly.
Friend and I have been close since our teens were babies, and our families became good friends. Over the years, as life has moved on, we've seen each other less and less. Now a few times a year, sometimes for lunch together or with our kids. Our children are no longer friends and have little in common, which is awkward. The last few times we have met, I have felt uncomfortable and anxious afterwards. The reality is that we are both very different people to the ones we were 15 years ago, and share very little in common. We haven't had an argument, there's been no betrayal or unkindness. I just feel our lifestyles and value systems have so little in common there is no mileage in the friendship any more, and being around her isn't 'good' for me. She is fundamentally a nice person (although doesn't always have 'nice' views) and I do not wish to hurt her feelings, but I really need to distance myself from the friendship. Is it best to say something? just to let things drift? To be busy for say, the next six years? Any thoughts appreciated.