I'm having a hard time dealing with a friend who can be a good laugh but is also very self-absorbed and seems to have no consideration for my time. Every time she doesn't ask how I am because she's too full of her own stories, or she cancels at short notice for some trivial excuse, it chips away at my self-esteem and I'm about to let the friendship fade out. But i'd also like to understand her behaviour better because I've never met anyone with her level of selfishness before. I'm just wondering whether people who are selfish / self-absorbed / only think about themselves etc are aware that they are doing it?