They say the eyes are windows to the soul. You can tell a lot about someone with the way their eyes move. If it moves a lot, he/she’s a psycho. If it doesnt, he/she’s dead.
Aww now things are beginning to make sense. Alice used the humor in being lewd to get the duke to open up. Duke was such a sweet boy when he was little and she is giving him rope to climb out of the despair. God they're so perfect.
Oh hey I just realised that Duke would have to cut his own hair post-curse since there's like a super high chance you'll die touching his head or ears or something (or even his hair who knows)