We all have all kinds of people in our lives. Everyone is there for a purpose and you share something different with each and every one of them. Even though "purpose" sounds very crude, that's what it is at the end of the day. But how do you know if you're talking to that person because you're just plain used to him/her or because you genuinely can't afford losing that person and that he/she is actually irreplaceable. So, where do you exactly draw the line?
As ironic at it sounds, I think the only way you realize is when the person leaves for a while. Leaving to return? Maybe yes or maybe that's just the end of it.
Very random and convoluted thought. I know. I guess I just ace the "skill" of ruining things by dissecting every emotion and every thought that crosses my mind.