Its really heartbreaking story. I Agree in order to save FL's life, ML has decided to sacrifice his life and show that he doesn't love and has to break her heart.But that doesn't mean that she has to get insulted ruthressly and become a joke in front of everyone. She was carrying his child in her womb yet he showed least concerned, she was totally devasted by getting abonded by the ML.
I agree he wants her to be safe but still what about her respect and dignity also the future of the child. As a women i would rather die 100 times respectfully that treating like trash in front of everyone.
Even though ML sacrificed his life, I would still hate him as Houxi.
Finally her father has to sacrifice his life for the sake of her dignity and to awake her goddess powers.
Even though FL's(Shangu) last wish was that she would not become goddess which means she wants to live a normal life with her lover. But what the ML did, he just fulfilled her half wish by sealing her godess powers yet she could not live a normal life. but this time her life was more miserable because of ML.

I have also watched "THE LOVE BETWEEN FAIRY AND THE DEVIL" even he broked the fairie's heart but it was just love breakup and he was ready to sacrifice whole world for her.