This happens a lot. But if you are feeling the need ask, I suggest actually asking. Sometimes people really do care--but they might be going through something and acting differently. Or they might not know how to give you the attention you need, and they might not even realize that! :-) So communication is key. But if they are still jerks after that, I say put the majority of your time and attention into your self and the people who do want to be around you and give you the love you deserve! This is a wisdom that is very difficult to accept, but once you do, you will find that life is a whole lot brighter!