Why am I so thoughtless and dumb?

Exclude myself from everyone

Alone inside this empty room,

My existence is left out

Left out by my friends

I'm hanging out smoking cigarettes

I'm hanging out

Alone with me, myself, and I

I have no problems getting by

All by myself

Without my friends

All of my 

friends are pissed at me

They'll decline my apology

If they don't care about me

Then I guess that I'm my only friend