Descalzo means "barefoot." While seemingly simple, it carries a strong emotional weight in the context of this song, making it quite memorable.
In the lyrics, Pablo Alborán sings, "Hubiera caminado descalzo con frío / Si hubieras querido" (I would have walked barefoot in the cold / If you had wanted). This imagery evokes a profound sense of sacrifice, vulnerability, and unwavering devotion, suggesting a willingness to endure hardship for the sake of the relationship. It's a powerful way to express deep love and commitment.
"Si Hubieras Querido" is Pablo Alborán doing what he does best: turning a breakup into something almost unbearably gentle. He opens by admitting "Nadie dijo que era fácil despedirnos" ("Nobody said it would be easy to say goodbye"), then spends the whole song on a harder question than why it ended: how two people who loved each other this much still couldn't make it work. "¿Quién diría que en un día mueren años?" ("Who would have said that years could die in a single day?") is the line that does it for me. It's such a strange, precise way to describe how a long relationship can just stop.
The chorus is where the song really lives, repeated so many times it starts to feel like he's trying to convince himself. "Pude ver lugares bonitos" ("I could have seen beautiful places") and "Pude imaginarlos contigo" ("I could have imagined them with you") turn the whole song conditional: everything is "pude" and "hubiera," a future built entirely out of things that never happened. By the last "Si hubieras querido" ("If you had wanted to"), it isn't really a question anymore. He's not angry. He's just finally saying it.