La-da-da-da, da-da-da (Da-da-da-da-da)
La-da-da-da-da

If I told you how much I think about her
You`d think I was in love
And if you knew how much I looked at her pictures
You would think we`re best friends

`Cause I know her star sign, I know her blood type
I`ve seen every movie she`s been in, and, oh God, she`s beautiful
And I know you loved her, and I know I`m butthurt
But I can`t help it, no, I can`t help it

I`m so obsessed with your ex (Uh-huh)
I know she`s been asleep on my side of your bed, and I can feel it
I`m starin` at her like I wanna get hurt
And I remember every detail you have ever told me, so be careful, baby
I`m so obsessed with your ex (Ah)
Yeah, I`m so obsessed with your ex (Ah)

La-da-da-da, da-da-da

She`s got those lips, she`s got those hips
The life of every fuckin` party
She`s talented, she`s good with kids
She even speaks kindly about me, ah-ah

And I know you love me, and I know it`s crazy
But every time you call my name, I think you mistake me for her
You both have moved on, you don`t even talk
But I can`t help it, I got issues, I can`t help it, baby

I`m so obsessed with your ex
I know she`s been asleep on my side of your bed, and I can feel it
I`m starin` at her like I wanna get hurt
And I remember every detail you have ever told me, so be careful, baby
I`m so obsessed with your ex (Ah)
Yeah, I`m so obsessed with your ex (Ah)

Is she friends with your friends? Is she good in bed?
Do you think about her? No? I`m fine, it doesn`t matter, tell me
Is she easy-going? Never controlling?
Well-traveled? Well-read? Oh God, she makes me so upset

I`m so obsessed with your ex (Ah)
She`s been asleep on my side of your bed (Ah), woah
I`m so obsessed with your ex (God, she makes me so upset)
I`m so obsessed with your, with your ex