I Can't Fit In With You

If there's one thing I never knew,
It was how to fit in with you.
No matter how hard I try,
I can't fit in, I don't know why.

It feels like I'm just there,
And if I wasn't, no one would care.
I just can't seem to fit in,
And no one really wants to listen.

I'm not like you, that I know,
But why does it matter so?
Does this mean that we aren't friends?
Is this how our story ends?

Are you just gonna leave me behind,
Completely erase me from your mind?
If you do, I guess that's okay,
I'll be alright without you anyway.