I watched you walk into the room
I watched you, while he was kissing you
Now it's he said she said tell me the truth
You know I saw you, caught you, do what you do
You know I watched you, doing what you do
You told me I'm the one (told me I'm the one)
I hope you had your fun
I'm done and I want out of this

Chorus;
Heart Attack, heart attack
I'm never gonna take you back, take you back
I'm never gonna break, I'll show you
I won't call you
Heart attack, heart attack
I'm never gonna live with that, live with that
My nightmare just came true
Now the heart attack's on you

Do you miss me?
When you close your eyes
Do you still see me in his disguise?
Now it's he said she said
All of them lies
You know I saw you, caught you, what a surprise
Do you miss me kissing you tonight?
You told me I'm the one (told me I'm the one)
I hope you had your fun
I'm done and I want out of this

Chorus;
Heart Attack, heart attack
I'm never gonna take you back, take you back
I'm never gonna break, I'll show you
I won't call you
Heart attack, heart attack
I'm never gonna live with that, live with that
My nightmare just came true
Now the heart attack's on you

(You) Now the heart attack's on you
I'm out the door
And you're barely breathing
Now I'm leaving you
You really should have thought things through
I guess I wish you all the best as long as your heart breaks in two

Chorus;
Heart attack, heart attack
I'm never gonna take you back, take you back
I'm never gonna break, I'll show you
I won't call you
Heart attack, heart attack (I'm never gonna break)
Heart attack, heart attack (I'm never gonna break)
My nightmare just came true
Now the heart attack's on you