But is pretty clear and obvious, it is not like you close the path without knowing or by accident, every single tool is there to keep your interest in Josy and the other girl, or not. Harder to believe is going for "just friends" and then all the sudden an option that say "you know what, I was just kidding".
Just picture that we didn't knew about it, and in season 5 you find out that you can have a relationship with Josy and/or the other girl, and you go like "But I choose just friend back in season 1, why?"... right?
The choice is there, pretty clear to be honest.