Quality Sport Images/Getty Images Barcelona put Real Madrid to the sword on Wednesday night in a 3-0 victory at the Santiago Bernabeu to progress to the final of the Copa del Rey, 4-1 on aggregate. It was a humiliating defeat for Los Blancos in their own house. Gareth Bale came on as a second-half substitute, but he failed to affect the game. The Welshman’s only notable showing was a break he made inside Barcelona’s defence with a few minutes to go, but he ballooned his shot wide. The miss drew hoots of derision. When the referee blew for full-time, Bale made a beeline for the tunnel. As he walked off the pitch—alone and neglecting to shake hands with any of Barcelona’s victorious players—he looked like a man who lives in his own world. Bale has endured a tough time. He’s getting hammered by the Spanish sporting media. He’s unloved by his own fans, and his team-mates’ lack of solidarity has been noticeable. Instead of support from them, he’s got scorn. In an interview with Belgian newspaper HLN in February (h/t Sport), Real Madrid goalkeeper Thibaut Courtois went into detail about how Bale sat out a team-bonding dinner because he needed to be…