Who's Lonely... who's not?

So you know what it feels like to be lonely,
Everything nice suddenly turns ugly
All happiness flushes, smiles crashes

They say loneliness kills,
Oohh, death is dreaded
What meaning can it spill?
If lament makes one numb

Tired, restless, clueless
Resting is nowhere to be found
Black little things creep out
From below a lonely heart’s eye

Everything I say, all hallow
If I die tonight would you follow?
If I disappear, would you fret?
If I get broken would you be there to mend?