Arguments were strong but more defense?

The arguments were hard to follow sometimes. I got some of the points but was not sure if I captured all of what the author intended. I felt I was jumping back and forth with the information and I was not getting everything the author was trying to express. The arguments seem to be a stretch sometimes as well. I would have loved to hear more of how to defend marriage and protect the sacrament. What simple steps can be taken such as giving more than you receive.