That's The Truth by George Strait

I said i don't love you, and i ain't never been your fool
That's a lie, and that's the truth
And if it's over makes no difference if we're through.
That's a lie, and that's the truth

Chorus:
I said go on, i'll be just fine
I won't fall apart, or go out of my mind
I said no one could break my heart
But you're living proof
That's a lie, and that's the truth

I don't mind the darkness alone in this room
That's a lie, and that's the truth
I like bein' lonely, yeah, i ain't missin' you
That's a lie, and that's the truth

(repeat chorus)

And if you find somebody
Who says they love you more than i do
That's a lie, and that's the truth