It is outrageous that people rate story as 10.
The big ethical and moral issues is in promoting or encouraging very young underage girls that is ok for them to be in love with much older guys. In real life that can be very troubling if they encounter unethical person who will take advantage of them. Once ethical doubts is created, its hard to like relationship between two actors, story becomes unpalatable. I do not have problems with love stories between adults, but involving underage children is no go.