Explain

Explain to me how I knew it.
How I knew you couldn't hold on.
Tell me why I was right about this,
When, so badly, I wanted to be wrong.

Try to make me understand
Why you couldn't wait for me.
I waited for you for FIVE DAMN MONTHS,
And in WEEKS, you gave me three.

I had to tell everyone.
I had to tell them I didn't care.
I had to tell them I'm glad you're happy,
While having a secret pain to bear.

You kissed her right in front of me,
Something I never did to you.
Then you smiled like it was nothing
Because before that, I never knew.

No one ever told me
That you two are together again.
I had to find out from P.D.A.
So I guess you win.

You win all of the prizes.
You win all of the cheats.
You get my heart, and walk away smiling,
Doesn't matter if it's not in one piece.

So explain to me this last thing:
Why did I build you up?
Why did I believe in you
When you'd leave me here in this rut?

Explain to me why I givadamn.
Why you're face is always in my mind.
I hate you so much!...I hate you...
So why do I miss you all of the time?