It's your life, and you choose how to
live it. You can't assume that nobody cares.
Maybe other people just don't want to interact with others,
because of certain circumstances. It isn't anyone's fault, sometimes
thats just how life goes we all move forward, even though, it breaks their
own and other people's heart, or maybe they're hoping to hear something back from you soon. Just rewind back why you feel this way, and you don't owe anything to anyone. Do you think maybe you need to communicate your feelings a little more openly? Try not to take certain events too seriously. Talk to whomever hurt you instead of coming up with many scenarios. I don't know what you're really referring to, but try to analyze the situation at hand before you start assuming the worst. Try giving the circumstances a benefit of a doubt. Most of all, try solving the solution by perceiving it differently, and how you want to fix it. I know it's going to be difficult, but it's worth a try, and most of all it'll be good for your own sanity. Good luck.
By the way, just because you're out of someone's sight doesn't mean you're out of their mind; " absolutely not!" Have a little more faith, and self-esteem on your behalf. "Most of all yourself,"