Love Potion Wedding

Romilda Vane vows that if she can't have Harry Potter than no one can. But when she takes things too far and utilizes a Weasley's Wizard Wheezes love potion will she find love? Or will she ruin not only her life but that of Harry Potter, and Ginny Weasley too? And why isn't Ron all that upset that Ginny dumped his best friend?