Anywhere on the net we may encounter people we like, people we dislike, and sometimes those we grow to love. For whatever reason, and sometimes you never do find out why, some of them just disappear forever, overnight, without a trace or a word.
It's a very fine thread that ties us to them; no bigger than a strand of spiderweb, in a way; and once that strand is broken you finally have to accept that Gone is Gone, pack up the memories and move on. Not that it works quite that easily, or gently.
Someone once said to me, "if something happened to you, how would I know?"
He made a good point: there are a lot of people out there that I know by only a first name, or a handle of some sort, and often not even what state they live in. I guess the only way is to accept them as Five Minute Friends, always aware that the thread one day will break at one end or the other, and go from there.