We all change, or, as we sometimes, with delusions grandeur, state: we grow. Sometimes, this takes our environment with us, most likely, it doesn’t. This is the reason why we see so many marriages break and also, why we see so many friendships abruptly ended. After all, marriage is a form of friendship (after the initial stages of lust go by).
As my friend eloquently stated for our mutual friend: “If I was introduced to him now, I would never befriend him!”.