Because you like Romeo Montague in Romeo & Juliet
Alex Vause's tattoos and tough exterior cover the fact that she's just a girl with a really intense crush. See them in Orange Is The New Black.
Cynicism is his armor and words are his weapons, but what Tyrion Lannister would really like is some nice wine. See them in Game of Thrones.
Edward Elric has a quick mind along with a quick temper. See them in Fullmetal Alchemist.
Jackie Burkhart is a privileged princess with a healthy dose of self-confidence. See them in That '70s Show.
Santana Lopez is a cutthroat cheerleader who's not afraid to speak, or sing, her mind. See them in Glee.
Carol Aird is driven to fight to make her life better, regardless the consequences. See them in Carol.
Aiden Pearce is a hacker who knows how dangerous the world can be, both online and off. See them in Watch Dogs.
An agile and powerful swordswoman, Saber is a dignified warrior down to her bones. See them in Fate/Stay Night.
Ilana Wexler is rarely found without a joint. When she's not absolutely blazed, she is a below average employee and an incredible best friend. See them in Broad City.
James Wilson is a compassionate doctor who willingly plays the sidekick. See them in House M.D..
Sephiroth wants nothing more than to seize the power of the Lifestream in order to become a god. See them in Final Fantasy Series.