
Kokuto:
If she could have admitted she wanted to spend her life with XL, she could have had Fang Feng Bei!
That was not my impression from the novel or from the leaked S2 script.
XL "killed" FFB on they day that they first arrived in QS town. He was already very committed to his path and his choice.
XL asked XY The Question on their last night in QS town, over a month later. Even if XY had answered The Question by saying that he was the person she most wanted to spend the rest of her life with, I don't think she would have had XL/FFB.
XL/FFB was constantly shutting down XY's inquiries (e.g., "...if I do not marry Chishui Feng Long, whom should I marry?") and pushing her away / towards TSJ. To me, it definitely didn't feel like XY was the one who was in control of whether or not they would / could be together.