The vlog was well thought out and enjoyable (although I was a bit distracted because I kept trying to see what was written on your palm).
I would make the argument that the flirtation of Caspian and Susan might build into the "myth becomes reality" theme. You're right that initially "you would not look at a mythical figure as a potential love interest", but as the myth becomes reality and you see that the myth is actually a real person, romantic feelings for the real person could develop.
In the same way, when the myth of a divine being becomes the reality of a loving God, the possibility of a personal relationship can develop.
Then again, they could mess the whole thing up.
- Dan -