I Can't

"Jaina?" His tone became softer when addressing her, but that couldn't change her mind. "I'm sorry, Arthas," she whispered. "I can't watch you do this." A look of hurt and betrayal flickered in his eyes, but all the same, he turned around to his men, getting on his horse. Dialogue referenced from Warcraft 3: Reign of Chaos. Set before the purging of Stratholme.