I'm The X

This news really changes everything
I can't believe how wrong I've been
Convinced myself we shared the same feelings
I won't make that mistake again

She's happy and carefree
The opposite of me
I can do the calculus
For her I set aside
My need to analyze
Now I'm wrecked and searching for why
I'm the ex

I've got no one but myself to blame
I've betrayed my core philosophy
Unbending reason must be my true north
Lest I drown in this sea of pain

I'm so dysfunctional
Weak and emotional
Feelings I just can't contain
Escaping this misery, you're breaking free
Not a possibility
I'll solve for y in my computation
But missed vital information
The variable so devastating
I'm the X
I'm the X
I'm the X