Yao Ying didn't know who he was himself, but how could the people around him accept him so easily? He was thankful for that. But... he was afraid that the past him would make them disappointed if they found out that he was actually a bad guy.
Wang Luo Hai could see his disturbed mind and how Yao Ying viewed himself in a harmful way to think. "Listen to me! I know that you have a lot of insecurities. Don't you ever doubt yourself! A person could forget his or her own past, but he or she can't change drastically his or her personalities. The people around you... all of them aren't fools. They can clearly see that you are a good man, so why don't you trust yourself a bit more?"