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please remember! this translation is my personal work. it is sometimes difficult to translate word for word from spanish to english, so it may sound awkward in one languange when it is perfectly natural in the other. but i think you can get the general idea!
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you promised me that you would be back soon
that never again would you remember the past
that you wouldn't think anymore about that woman
and you even swore you wanted to be mine
you told me you felt an immense love
that i was the medicine for your pain
you wrapped me up in that lovely illusion
and i gave myself completely and unconditionally
and now that time has gone by,
you have forgotten me, and you're not coming back
Coward,
you're nothing more than a coward
you don't have the courage to talk to me
and you keep running away
Coward,
you're just a coward
but sooner rather than later
you'll remember me well
You told me you felt an immense love
that i was the medicine for your pain
you wrapped me up in that lovely illusion
and i gave myself completely and unconditionally
and now that time has gone by,
you have forgotten me, and you're not coming back