Responses
Eh... Why? So far, Erika is the only one that able to see the side that Harold himself want to hide. Her character development is marvellous. Harold has been fighting alone. He's carrying this burden alone. But we can see, Erika helps him realise that he's not alone and ease him a little bit whenever he's with her.

Nothing will make me like Erika. Raaaaaaahhhh (╯°Д °)╯╧╧