I cannot tolerate people who only think about themselves.

I can't stand how people feel like the world revolves around them, their problems, their feelings; just them. It's something that bugs me and gets on my nerves.

Yeah, there are times where you have to think about your feelings and yourself. But it shouldn't be... ALL THE TIME. You should consider other people's feelings too. Even their problems.

The world does not revolve around you, it revolves around everyone else.