All besides "Short-tempered, aggressive" option. And this is coming from a person who normally dislikes short-tempered and aggressive heroines. I guess it's because that it's overshadowed by Mei's many more annoying traits.

I dislike Yao/Mei. Yao didn't get character development, didn't become wiser and more humble. He remains self-centered, narcissistic jerk who expects undeserved admiration and judges people by how they are willing to please his enormous ego.