to me i believe FFB did tug her heart in a way. and she understands XL too. and do feel something for him. but the difference between Jing and Bei is Jing make the move, bei and xl did not. so Jing got a headstart. FFB/XL never express his feelings and how strong they are to her. if we are XY, i m sure we will not give our hearts to a guy who doesnt even tell u he likes u. why would she put herself up for such a raw situation.
i have no doubt at all she loves Jing. the 6 years in village is not for nothing. they are together every day 24-7 and he is there for her all the time except that very first time he ran off. and he does all he can to make sure XY do not go for another guy. Jing defense and attack are all top notch hahahaha....she loves him absolutely. she gets girly and feminine, she gets jealous, she get upset and angry with him, she likes to get intimate with him, she is concern for him and scare of losing him, she misses him. ladies, i think we understand with girls if we dislike a guy or his look or demeanor or whatever, we will not even want to go out with him, what more to spend hours and days with him.