I have no real advice, but I just wanted to say that maybe if you do follow the guidelines from the books his desire will come back? I guess what I'm trying to say is that I don't know if there is something you can do to change his feelings, but you can make yourself more desirable by being happier in yourself.
I hope things will work out for you
"There's nothing sadder than a conman conning himself"
“There is freedom waiting for you, On the breezes of the sky, And you ask "What if I fall?" Oh but my darling, What if you fly?”
