Are most people really so insecure that they would be bothered by not being a "top tier" friend to everyone they have ever known? Surely you can name a person with whom you have a cordial acquaintance, but are quite obviously not in their circle of "close" friends. I my case that's the big majority of people I know. So what?
Well it's fine if it's a symmetrical both of you think each other as same tier; less so if you'd disagree (e.g. some bosses think all their subordinates are their friends and would want them at their parties).
