Atormentar means "to torment" or "to haunt." It's a strong verb that conveys deep emotional distress, making it more impactful than common words for sadness.
In the song, the singer pleads, "No me hables de ella no me quiero atormentar" (Don't talk to me about her, I don't want to torment myself). This reveals the profound pain and suffering the memory of "ella" (her) causes him, highlighting the intensity of his past relationship and the lingering hurt.
Guayacán Orquesta's "Ella" (She) is a powerful and emotional salsa track about a man trying to move on from a past love, but it's clearly a struggle. He begs his friend, "no me preguntes más por ella" [don't ask me about her anymore] and "no me hables de ella no me quiero atormentar" [don't talk to me about her, I don't want to torment myself]. It's clear that this woman caused him a lot of pain.
He describes her with some pretty strong imagery: "hasta donde ella nunca sale el sol donde ya no brilla la luna" [where she is, the sun never rises, where the moon no longer shines]. He says "ella no tiene sentimientos" [she has no feelings] and "ella no siente ilusión al entregar su corazón" [she feels no hope when she gives her heart]. Ouch! He admits, "ella fue mi locura" [she was my madness] and "ella fue lo que hice, ella fue lo que pasó" [she was what I did, she was what happened]. Despite all this, he's trying to close that chapter, saying "lo que pasó ya pasó, pasado pisa y este amor ya su cuerpo acabado" [what happened, happened, the past is trodden, and this love's body is finished]. It's a raw look at the difficulty of letting go when someone has hurt you deeply.