*I'VE POSSIBLY CRACKED THE MEANING BEHIND THE LIGHTS UP MV*
I think that the boys and girls are a way of hinting at his sexuality or that they're his temptation, but he's committed to the guy on the motorcycle. He's so whipped and that's why he's riding helplessly on the back. He has no control over it as he's so in love. Also, remember the Kill My Mind mv?? There's a guy riding a motorcycle throughout the video. It all connects!!