You can have a very intense relationship with fictional characters because they are in your own head.
J. K. RowlingHarry, I've left a letter telling your aunt and uncle not to worry--" "They won't," said Harry. "That you're safe--" "That'll just depress them." "--and you'll see them next summer." "Do I have to?
J. K. RowlingDeath's got an Invisibility Cloak?" Harry interrupted again. "So he can sneak up on people," said Ron. "Sometimes he gets bored of running at them, flapping his arms and shrieking.
J. K. Rowling