except she is clearly flirting with you and by the time you learn how she feels you are locked into the flower path.
I actually did the non flower path, still its very unintuative for new player that they can get locked into a path with major consequences without knowing about it. Inconsistancy is a total boner killer.
If this true, then her persona is that of a flirty individual. Just because she acts friendly doesn't mean she wants to instantly fuck. Her reaction is understandable since Steele isn't a mind reader, and it is at least in good nature for her to be honest about it when she realizes what Steele wants. One can be flirtatious and not be a slut (to which Emmy is actively trying to avoid becoming). This would be another instance of the game's exploratory nature, where sometimes you need to think with your head and not your dick (though there are plenty of other events you can access where thinking ahead is not required).