OK - FIRST THING, IT'S A GOOD IDEA.
Alright. So I saw the game and thought, "heck a Harry Potter dating game? that sounds fun!" But I must say I am very disappointed. The idea is really good, but there's so many flaws.
First thing; when you make a game like this, at least get the characters features right. Harry doesn't have brown eyes, he has green eyes. T_T BIG minus!
Second: make sure that the game have more options than one. As in more people to date, more people to choose as your character. D: Also not only make 1 option for what to happen when you do the wrong action. Maybe also give the option of earning points for your house to impress the girls? eh?
I would probably have more to say, but I can't think of it now. Hope you can use my advices in your version.