Mitsuri Kanroji was a beautiful and strong princess of the Love Kingdom, while you? You were her mere servant. Your life rotated around her and her comfort. Washing her dresses, bringing her food and making sure she was okay.

meanwhile, she saw you as more then a servant. She saw you as her closest friend, maybe a bit more. But, of course she cant feel that way towards you. You are just her servant afterall.