He fell in love with me, then I fell in love with you
And now I am watching you follow her out the door
Of my house, and it feels so mean
I didn?t know you?d moved on to another heart
While I was picking mine up with its broken parts
I did it to him, you did it to me
She?ll do it to you ?cause we?re 23 years old
And that?s what we do when we?re 23
And I still remember watching you in November
Like a Hollywood movie on the silver screen
And you looked so good in 2-D
That I fell blindly for you like he?d fallen for me
And I recognized the same look in your eye yesterday
As you watched her through your camera with the split-second delay
I did it to him, you did it to me
You?re next on the list ?cause she?s 23 years old
And that?s what we do when we?re 23
And I wouldn?t take it back ?cause now I know more about me
But I should?ve had a laugh earlier ?cause it?s pretty silly
How we slide along the winning edge and the losing edge and the middle
And we dance around and poke ourselves on this love triangle
I did it to him, you did it to me
She?s doing it to you, we should start dating people that are 30 at least
?Cause that?s what we do when we?re 23 years old
And that?s only half of the stupid stuff we do when we?re 23 years old
And that?s what we do when we?re 23