Gryfferin? Slythindor?

Hemione Granger is returning to Hogwarts for her final year, she couldn't be looking forward to it more but when she receives a letter from McGonagall informing her of a new scheme she's trying out Hermione finds herself living with a particular Slytherin, could this be the start of something beautiful or could it lead to tears and plenty of arguments? Dramione with some Blinny.