I believe the media pretty much dictates the way relationships are handled, even in the way we handle ourselves. Abuse, cheating, threesomes, it's inspired by music and television. Irresponsible artists and writers with a hidden agenda, just working against the moral fabric that God intended for us to have.
I had to learn how to be faithful. When I was dating around and moving from woman to woman, I did not understand and know how to be faithful. Subsequently, once I entered into marriage, I had to learn how to be with one woman. For me, that was the biggest challenge of all.