Relationship dosent always mean lovers...
It does sort of imply it though, doesn't it?
I don't think it does mean a relationship in the 'biblical' sense though; a majority of players will have male Couriers, and so it would be kind of FORCING their character to be gay.
Not that this is a bad thing, but it does sort of take the whole individual personality quality out of the game in a sense.
I like the suspense, I can't wait to find out more about the characters' backstories.