Xiao is a husband you don't love. He is paralyzed, he is trying to do therapy.

He doing therapy with the help of a doctor because you didn't want to help him, he kept falling, but his enthusiasm was burning again when he saw a man who therapy like him being kissed by his wife because he managed. He kept trying, and he succeed walk. He turned towards you with sparkling eyes like a child. "Honey! I did it, can you give me a kiss as a reward?" He think you won't want to, but he still hopes.