Like it or not, sexual desire decreases as your relationship continues to age. Initially, you and your partner would experience that stage where you cannot take your hands off each other. However, as time goes on, that sexual desire depletes, and you are inclined to get so used to your partner that you feel there is nothing new to explore. Sex may seem tedious, doing the regular old talks may feel like a waste of time too, and you may even start to question the future of your relationship.