Horrible moral message
That if you want to be liked, accepted, and loved by others, then you must change yourself to fit in with their ideas of what is likable, acceptable, and lovable. Sandy was perfectly happy with her way of being, but in order to be loved by Danny she had to change everything that she was.
Something tells me that’s not a very good moral message, especially for kids: “If you want people to like you, dress like a slut and screw guys.” It also seems like a fairly bad way to begin a long-term relationship, completely subjugating your own needs to the will of another.