i'm not surprised lyrics

I'm not surprised, you didn't take the time to write me
I'm not surprised, you didn't take the time to call
But baby, you know it really shook me
When baby, I heard you're not coming back at all

I'm not surprised, you didn't stop to think about me
I'm not surprised, you let me vanish from your brain
But baby, you know it overtook me
When my friend said, you're gonna leave me here behind

Why must it be? Why must it be?
Why must it be? Why must it be?

I'm not surprised, you started out without me
I'm not surprised, you even stopped to care
But baby, if you must desert me
When you go, don't talk about me when I'm not there