Lets get one thing straight. The moment you say that no one cares about you, is the moment I'll know you never cared for me. Because I'd never give you a chance to even doubt me. If you can't see my affection and how much I actually care for you, then you should ask. If you're taking my time and effort to know of your well-being for granted, then its your loss. Learn to appreciate those around you who actually give a shit about you.
What goes around, comes back around. So don't fucking complain about anyone caring, because there's people out there lending a hand or two.