Entrapping Miss Granger (гет)

Again and again they come across each other, and with each time their relationship changes, slowly, but inexorably. When finally he meets her on that fateful day in the bathroom, hatred turns steamy and she learns what a real man could give her.
For a pureblood to entrap a mudblood, how much does it really take? Will there be a price to be paid?
Just a little Lumione fantasy I had a few years ago. Originally German, translated by myself.