The Dark Lord's weakness

Everyone truly believed that no one expect harry could stop Voldemort that he had not weakness but everyone was wrong. Dumbledore had hid the truth about Voldemort. He had a weakness her name was hope Mickelson. The daughter of hayley and klaus Michaelson. They met during their 4th year at Hogwarts. Hope was a gryffindor and Tom riddle was a slytherin. They met at slughorn's party. She was the only one to ever stand up to him. She made him feel alive. They start talking and becomes friends but Tom gets feelings for the young girl. He believes its love but it's something else more like an obsession. What will happen?