He likes Huo Ling. That's a fact. As to what exactly is this 'like' – whether it is the type that develops into love, Yi Bing doesn't know, and he doesn't want to know yet. "Are you ready to answer?" he asked back.
It was Huo Ling's turn to be silent. Yi Bing said 'ready', so Yi Bing must have noticed. Huo Ling clearly knows, aware, what his attachment is. Just now, it was him testing Yi Bing. But the table has now turned.
Yi Bing is testing him. Huo Ling felt powerless. "No." he finally answered.
Yi Bing just hummed a response at his answer and didn't speak any more about it. He nodded. "Then, let's climb a mountain." He said.
"…?" Huo Ling was puzzled and he sent a quizzical look at Yi Bing. What mountain? Why a mountain?
Yi Bing saw him looked at him in askance. He cleared his throat before he spoke. "Climbing a mountain tests one patience and endurance. This is helpful to a soul." He explained.