In the novel the emperor says Apel like he did when he was young cause he couldn't say Abel which they did get that right but Abel responded with "my prince" not what he said here. Cause he always called him my prince when he was young. At this point he is now like 99% sure this is Abel.
Depends on the person, personally I'm actually like this irl I can't even say I like you back to the person that just confessed to me. I mean, I evetually did, but after we were sitting there for like 10 minutes so embarrassing
They are actually very cute! Cutest ghost I've seen!