She walks in, you stop talking
I can see it all over your face
You still get defensive
Every time somebody brings up her name

And I could tell you that I don't see it
You could swear that you mean it
When you say you don't want no one else
But baby you been lying to yourself

'Cause she's still the one in your head
I'm just the girl in your bed
She's got a hold of your heart
I'm just the one in your arms
When you're with me, you ain't with me
I feel her name on your lips
when you kiss me, it kills me
You're gonna end up with her in the end
'Cause she's your girl, I'm just your girlfriend

Heart don't lie, and neither do I
I don't wanna be second place
So when that day comes, and she calls and you run
I ain't gonna beg you to stay

But damn I wish that you had never met her
Wish there was a way I could make you forget her

'Cause she's still the one in your head
I'm just the girl in your bed
She's got a hold of your heart
I'm just the one in your arms
When you're with me, you ain't with me
I feel her name on your lips
when you kiss me, it kills me
You're gonna end up with her in the end
'Cause she's your girl, I'm just your girlfriend

She's still the one in your head
I'm just the girl in your bed
She's got a hold of your heart
I'm just the one in your arms
When you're with me, you ain't with me
I feel her name on your lips
when you kiss me, it kills me
You're gonna end up with her in the end
'Cause she's your girl, I'm just your girlfriend

She's your girl, I'm just your girlfriend
oh, yeah
She's your girl
I'm just your girlfriend (I'm just your girlfriend)