Do you know this feeling?
You like a tv show, maybe especially since you fell in love with a character.
You can relate to this character or admire him for she/he's totally awesome, he looks handsome and the actor does a good job at his job - perfect.
Maybe you fall in love with his love interest (and in almost EVERY show a character has a love interest - if not... Well, imagine one ;) ) and ship this pairing.
You love seeing your favorite ones and look forward to every new episode and then you get really lucky or atleast you think so:
Your favorite character gets more screentime or finally gets closer to his love interest. It makes a fan