Quoted from "I Believe You"

“You’re like the North Pole of a magnet bar, and he is also like the North Pole of a magnet bar. There’s no way for both of you to be close together. There’s a force that’ll always push you both apart. This force is called the obstacle, like interest differences, communication problems and etc.”

“However, if you put a metal bar in between, both you magnets will stick to it. And you’ll be close to each other. That metal bar dissolves the force that pushes both of you away. And that metal bar is what we called love.”