I was looking through the novel again to find the section where XY said her reason for being with that darned fox and I found this:
Ch. 23
"Jing finally spoke “Before Xiao Yao was Xiao Yao, I already liked her. You must wonder why I never told you, that is because I could not tell you. Many times I worried that I wasn’t good enough for her. You, Fang Feng Bei, you are better options for her. No matter who gets close to her, I thinks its better for Xiao Yao. No matter who she chooses, it’ll be happier than with me. I constantly tell myself to give up, but I can’t give up.”
Oh, so you admitted you're not as good as FFB & Feng Long but you still won't give up. You'd rather XY be less happy with you than for her to be with another man that makes her happier. I can't take it with this dude!!!!!!!