Dome comes from the verb domar, which means 'to tame' or 'to domesticate'. While often used for animals, applying it to a person makes it particularly striking and unique in a song.
In the lyrics, Mora sings, "A ella no hay quien la dome" (There's no one who can tame her). This line paints a vivid picture of a wild, independent, and perhaps untamable spirit, making the listener curious about the person he's describing and the story behind their relationship.
This song is about being completely stuck on someone you know you shouldn't be. Mora kicks things off by admitting he's still chasing his ex's spirit, saying, "Sigo detrás de tu alma / Persiguiendo recuerdos" (I'm still behind your soul / Chasing memories). These memories aren't just thoughts; they're a comfort to him when he's scared. But what's he scared of? "Miedo de no poder verte / O de verte con otro / No sé cuál es peor" (Fear of not being able to see you / Or of seeing you with someone else / I don't know which is worse). He's trapped between two terrible options, and neither one includes them being together.
He knows this relationship was a bad deal. He complains, "Me pasa por dar más de lo que recibo" (This happens to me for giving more than I receive), and uses the incredible line, "morí de frío por darte mi abrigo" (I died of cold for giving you my coat) to describe how he gave everything and was left with nothing. Even though he's learned his lesson that "no to' lo que brilla es VVS" (not everything that shines is a VVS diamond), and he's finally collected the emotional debt she owed him, he can't break free. The song ends right back where it started, with him still chasing her memory, showing just how hard it is to move on from a powerful connection, even a destructive one.