Nobody on this earth truly cares about you

I wouldn't say that your assertion is entirely true, but it is to perhaps a rather large degree true, and I for one can relate to, and appreciate your point of view. I guess I have a few friends, but I also don't hesitate to cut people off if they try to take advantage of me either. When people annoy me too much I'm not adverse to making myself unavailable to them. It might hurt, or anger some people, but oh well...