He knew she could do better, that Zhu Zhengting wasn't the one for her. Yet he couldn't do anything but watch. He saw the beginning, and the end. 

“If you’re on the verge, then just break up with me.” Zhengting said while turning away from me. “But I don’t know,” I hesitated, “I’m not sure if this is what I want.” How did we even end up this way? I always asked myself the same question over and over..