Disclaimer: If I was J. K. Rowling, why would I add stuff to my own book?
Ron was in shock. As Greyback forced them down into the Malfoy's cellar, he found himself shaking. They couldn't take Hermione away from him. Anyone but Hermione. Why couldn't Bellatrix have taken him instead? He was stronger, tougher. He felt that he would never see her again, and he had never told her how he felt about her…
The heavy door clanged shut and Ron heard her scream. "HERMIONE!" he shouted with every ounce of breath he had in his body. Nothing could happen to her; he had to protect her somehow. He struggled against the bonds holding him to Harry and continued shouting her name. Maybe if he was loud enough, he could save her. Maybe someone would hear…
Harry was trying to get him to be quiet, but nothing could stop him. He had to save her, she couldn't die…
And then Luna's voice stopped them both. She had a nail or something. Logic returned to Ron and he began to plan how he would get free and save her…
And then she screamed again and nothing else in the world mattered. Hermione was the one being tortured, but every scream of hers pierced his heart agonizingly hard…
Now Bellatrix was talking and Hermione was pleading with her. Luna was trying to get him free and he suddenly remembered the Deluminator, he told Luna of it and the room was filled with light. He realized then that there were other people in the room, but the only person in the world that mattered was upstairs and he couldn't help…
Bellatrix was shouting again and Hermione screamed again. "HERMIONE!" he yelled, his throat burning. And then the ropes were gone and he began searching for a way out. There had to be a way out! A door or something…
Then he realized that he could Apparate, but he didn't have a wand. But nothing mattered; he had to get to her…
And then she was screaming again. He began pounding the walls, tears pouring down his face. He had to save her…
And then Hermione let out a scream far worse than the rest and he was screaming, his fists were bleeding, his throat was on fire, but none of it mattered. He had to save her…