New, slightly more complex hypothetical:
You and one fictional character of your choosing are placed on an island for one month. It will be just the two of you. There won't be any unpleasant creatures on the islands and all your needs, such as water, food, a place to live and poop, etc will be taken care of. Neither of you are likely to go insane from cabin fever as there is a lot to do on the island.
On top of who you choose, I'm wondering how you will develop a relationship with them. If it was a character you were physically attracted to, would you just bone them the whole time? Or perhaps, would you just be content to spend time with a character that you truly care about? At the end of the month, I allow for you to propose to said character. If he or she says yes, the character will be turned into a real person and you can marry 'em. If the character says no, they go back to being fictional.
The character doesn't retain any super powers or anything like that but the character does keep memories of the world they come from. You'd have to work around that. In fact, and this is by all means viable, you can convince them that their memories weren't real. You can create a new identity for them, if you want. ๐
So yeah, who would you choose, why, and how would you handle this?