>>18632
>I guess the romance fiction thing about eventually dating your childhood friend is just a fantasy.
Of course not, but:
1. Your first love is most of the time just that, your first love.
2. Once you grow up, people tend to change, get other hobbies or have to move for their job.

Dating somebody you've known for a long time is not unheard of, but nobody can guarantee you'll stick together forever.