@sarcasm life is like an economy. Everyone has a mutual interest in someone else. No one thinks out of that box. People talk to you because they find it amusing. Let's say you and your friend can relate to something so you can talk about it and feel nice while doing so. And with business comes its ethics. People only act as if they care. No one can actually know what you go through. In short, you are pretty much alone in this world and that's nothing sad.
But I do agree there are people you'll find in your life who are totally opposite to what I have described. Good luck finding them. Abd when you do don't ever lose thenm