I'm really sorry that you are feeling so unimportant as a result of interactions with people who say that they care about you.

(((((Hedgeleaf)))))

Perhaps it would help to think of a spectrum of caring. Take for example my next door neighbour. He and his family are friendly enough and he cares enough about us to consult us on various matters of mutual interest, as opposed to just going ahead his own. So maybe he cares about us at a level of maybe 3 or 4 or 5 on a scale of 1-10, 10 being highest. He cares about us, but in a limited way. My old university roommate, on the other hand, cares a great deal for me and would do nearly anything for me, as I would for him.

Therefore, in my opinion, sorting out what people mean by "caring" is key. While my neighbour does truly care about me, I have learned that his caring is limited, and I need to keep his limits in mind. Even though he does care about me, I would be wise to choose my university roommate, not my neighbour, if I had something personal that I needed to speak about.