He looked at mirror that had the face of his soulmate, confused.
"Na mate, this mirror is broken."
"But look, he's right there. It has to be him."
"But, it can't be."
"The mirror never lies."
AU: (Which I made up)
Where everyone in the world at one point in their lives step in front of a mirror and it reveals their soulmate at the happiest point in their lives. It only happens once, it could be from age 18 to 100, but it'll happen in their lives.