The beginning of a relationship is always filled with excitement, happiness, and great sex. You were almost joined at the hip and were constantly tuned in to discover more ways to spend quality time together. Of course, relationships do not always stay in that magic, honeymoon state. However, over time there may have been some disagreements, new responsibilities, and more than likely some kids to join the party and create a distance between you.
Time for real intimacy grows less and less as time goes by.