Daily appreciation can work miracles for a relationship in trouble. Taking time to be positive with your partner can change a destructive energy pattern into a constructive one. Of all the aspects of relationship, sexuality is perhaps the one that most needs appreciation. My other lovers never had this problem. Comments such as these, even when not said in the presence of a partner, can be extremely harmful.
Sexuality is an especially sensitive area of relationship.
If a partner is judged negatively or compared unsatisfactorily to a previous lover, it can cause a deep wound and serious problems to the couple. A better way to approach sexuality, especially when there are problems, is through the healing power of appreciation. Each partner needs to feel their efforts to please and satisfy the other are noticed and appreciated. Then, with great sensitivity to proper timing, communicate what you need to be different. The middle of an argument, or late at night when you are exhausted, is usually not the best time to do this.