It is a shame when friends' lives are so different that they fade out of the picture to varying degrees. Of course I have experienced this. In the case of my last friend that stuck by me for longer than others, when she had kids that pretty much ended it. [I don't have any.] Plus, she had been a work friend. In some of those cases, when you don't have anything comparable (or near) to talk about...well... Plus, I learned that she was talking to others about me behind my back in a bad way. I dislike that immensely. I don't do that to people.

The above friend contacted me a number of months ago and offered to get together, sort of in a way as if she would be doing me a favor. Given all of the above, I had to tactfully say no. The friendship is over. I do hope your friendship survives, if there is still value in it.