Hello, thanks!
Some choices will have impact on the story, other, no, just scenes change but it's a part of the psi and ambiance ;)
As I said, I'm not developping all the routes at the same time, would be too long, I focus on 1 path... but I open some options for the future as well :) And we can't always understand everything, why his shirt is blue and not black, well... it's how the life is :) We don't always take rational decision with purpose, and sometimes yes ^^