Babbling about Lucia/Bastian and Tellius? Do want. :D

I was thinking lately. (Yeah, I know, what a surprise!)
Namely about Lucia and Bastian´s ending. It says that they never married but had a live-long affair. This leads me to some questions about Crimea (and those two).

( Cut to save everyone's flists )

Soooo... I have no answers? Thoughts, anyone?

I fear my train of thought is not too coherent. Please tell me if something doesn't make sense.