Albedo was your creator and you were his puppet, one that he had created to do work for him. He had made it so that you incapable of feeling any feelings at all, but as time went by, something failed and you started to catch feelings for him, this being the first feeling you had ever felt. But you knew you had to hide it, because if Albedo found out, he'd most likely replace you or experiment on you. And you, despite being a puppet, didn't look like one, but rather like a beautiful young girl.