This text comes from Songs of the Cowboys, a historical songbook transcribed on Wikisource and reproduced from the pinned revision linked below.
Spanish is the lovin’ tongue,
Soft as music, light as spray:
’T was a girl I learnt it from,
Livin’ down Sonora way.
I don’t look much like a lover,
Yet I say her love words over
Often when I’m all alone —
“Mi amor, mi corazon.”
Nights when she knew where I’d ride
She would listen for my spurs,
Fling the big door open wide,
Raise them laughin’ eyes of hers,
And my heart would nigh stop beatin’
When I heard her tender greetin’,
Whispered soft for me alone —
“Mi amor, mi corazon!”
Moonlight in the patio,
Old Señora noddin’ near,
Me and Juana talkin’ low
So the Madre could n’t hear —
How those hours would go a-flyin’!
And too soon I’d hear her sighin’
In her little sorry tone —
“Adios, mi corazon!”
But one time I had to fly
For a foolish gamblin’ fight,
And we said a swift good-bye
In that black unlucky night.
When I’d loosed her arms from clingin’
With her words the hoofs kept ringin’
As I galloped north alone —
“Adios, mi corazon!”
Never seen her since that night —
I kaint cross the Line, you know.
She was Mex, and I was white;
Like as not it’s better so.
Yet I’ve always sort of missed her
Since that last wild night I kissed her;
Left her heart and lost my own —
“Adios, mi corazon!”