Harry:
Because you and Harry are always happy whenever your around people.
Liam:
The fans love you because you are the one who helped Liam out through hard times.
Niall:
The fans love you because you and Niall do so many sweet things for others.
Louis:
The fans love you because both you and Louis are always in a prank war. You two are one of the funniest couples in the fandom.