Batallosa is a colloquial and somewhat unique word in this context, derived from batalla (battle). It's used here to describe a person who is difficult, argumentative, or a
In "Aunque Te Duela," which translates to "Even If It Hurts You," Edgardo Nunez delivers a brutally honest warning to someone who is falling for him. He doesn't sugarcoat his intentions; instead, he lays his cards on the table, calling himself an "expert at breaking hearts" and admitting he simply doesn't want to love. He urges the person to walk away before it's too late, not because he's being mean, but because he doesn't want to hurt them.
The singer makes it clear that he isn't going to change. He advises the other person to "start valuing yourself" and find someone who will truly love and respect them. He confesses he's the type of person who will "promise the stars / but wouldn't bring down a single one for you." The song is a powerful message about knowing your own limitations in a relationship and telling someone the hard truth to save them from future pain.