Because you like Rhett Butler in Gone with the Wind

More than any of her friends, Fluttershy is willing to see the best in everyone, a trait that has won over many enemies. See them in My Little Pony.

He's the great Black Star, and he's come to assassinate you. See them in Soul Eater.

Level-headed Ian Gallagher may be focused on his goals, but he's got a mischievous side too. See them in Shameless.