Below, I translated the lyrics of the song A Qué Me Quedo by La Maquinaria Norteña from Spanish to English.
Que sorpresa fue cuando te vi
What a surprise it was when I saw you
De la mano con tu nuevo amor
Hand in hand with your new love
Me dio rabia al verlos ser feliz
It made me angry to see you happy
Me di cuenta de lo que perdí
I realized what I lost
Siento celos y mucho dolor
I feel jealous and a lot of pain
Ese fuera yo al lado de ti
That could have been me by your side
Yo tuve la culpa por marcharme
I was to blame for leaving
Si contigo era feliz
If I was happy with you
Y no me faltaba nada
And I didn't lack anything
Que duro es, el comprender
How hard it is, to understand
Que tu ya no eres para mi
That you are no longer mine
Como quisiera el tiempo regresar
How I wish I could turn back time
Y no irme de ti
And not leave you
Que duro es, aprender a perder
How hard it is, to learn to lose
Y ver lo que pudo ser de mi
And see what could have been of me
Eso seria un final feliz
That would have been a happy ending
Y yo lo destruí
And I destroyed it
Me di cuenta de lo que perdí
I realized what I lost
Siento celos y mucho dolor
I feel jealous and a lot of pain
Ese fuera yo al lado de ti
That could have been me by your side
Yo tuve la culpa por marcharme
I was to blame for leaving
Si contigo era feliz
If I was happy with you
Y no me faltaba nada
And I didn't lack anything
Que duro es, el comprender
How hard it is, to understand
Que tu ya no eres para mi
That you are no longer mine
Como quisiera el tiempo regresar
How I wish I could turn back time
Y no irme de ti
And not leave you
Que duro es, aprender a perder
How hard it is, to learn to lose
Y ver lo que pudo ser de mi
And see what could have been of me
Eso seria un final feliz
That would have been a happy ending
Y yo lo destruí
And I destroyed it